See these four Maro articles for details
No Slot:
Freya's Blessing (instant)
Overpowering Light (instant, soulsong)
Determined Pilgrim (creature, small)
Sunsoul Lark (creature, small, flying, lifelink)
Blessed Pilgrim (creature, small)
Rise Up (instant, lifelink)
Soul Guardian (creature, small)
Gibbet Confinement (enchantment, enchant, flying, soulsong)
Soulstair Guide (creature, small)
Anara Falconer (creature, small, flying)
Soulbrethren (creature, medium, soulsong)
Exaltation of Larks (creature, small, flying, soulsong)
Tower Warden (creature, small, defender)
Anaran Squire (creature, small, soulsong)
Dissonance (instant)
Invalidate (instant)
Mindleech Avian (creature, small, flying)
Mindcoil Serpent (creature, large, defender)
Time's Bondage (enchantment, enchant, foresight)
Thought Shards (instant, flashback)
Think Fast (instant)
Shimmersprite (creature, small, flying, portent)
Deepwater Grasper (creature, small, portent)
Ruminate (sorcery, portent)
Banish (instant, portent)
Tower Sentinels (creature, small, foresight)
Mitecrafting (sorcery, portent)
Diviner's Familiar (creature, small, flying)
Raid the Vaults (sorcery)
Life-Stealer (creature, small, flying, lifelink)
Grave Geist (creature, small, unearth)
Withering Decay (instant)
Undervault Horde (creature, medium)
Coffin Breaker (creature, small)
Flayed Sentry (creature, small, foresight)
Horrifying Vision (sorcery, portent)
Throw from the Tower (sorcery, flying, portent)
Dalgath Raider (creature, small)
Blind the Eye (instant)
Graveshade (creature, small)
Dalgath Prowler (creature, small, intimidate)
Dalgath Thug (creature, medium, deathtouch, unearth)
Tyroshi Raiders (creature, medium, intimidate)
Dueling Mage (creature, small, first strike)
Anxiety Attack (sorcery, madness)
Slave Hellion (creature, large)
Angry Giant (creature, medium, trample, madness)
Rage Harness (enchantment, enchant, haste)
Bloodseer (creature, small, first strike, foresight)
Pageflame (instant, mindstorm)
Impatient Mage (creature, small, haste)
Forgotten Ritual (instant)
Radical Mage (creature, small)
Hot Under the Collar (instant, madness)
Looting Charm (instant)
Fanatical Mage (creature, small, haste)
Engorged Murlodont (creature, large, trample)
Bloodvine's Thorns (instant, flying)
Careful Cultivation (sorcery, portent)
Dreadglade Howler (creature, small, intimidate, portent)
Prudent Adaptation (enchantment, enchant, trample, portent)
Mind's Eye Bowman (creature, small, reach, foresight)
Stalking Boar (creature, medium, shroud, portent)
Ruin Forager (creature, small, foresight)
Warden of Arges (creature, medium, portent, foresight)
Loam Lurker (creature, medium, portent)
Centaur Preceptor (creature, small)
Vine Bonder (creature, small, portent)
Might of Eons (instant)
Simple Offering (instant)
Prescience Wand (artifact, equip, scry)
Portal Thopter (artifact creature, small, flying, portent)
Graven Servitor (artifact creature, medium, portent)
Foaling Grounds (land)
Noxious Fen (land)
Tranquil Pool (land, scry)
Ridgeside Cache (land)
Ambassadorial Garb (artifact, equip, protection)
Signal Stone (artifact, scry)
Sanctified Cloister (land)
Rampart Ravens (sorcery, flying, flashback)
Bound to Serve (enchantment, defender, enchant)
Reverent Captain (creature, small, vigilance, soulsong)
Gluttonous Lark (creature, small, flying, vigilance)
Vital Librarian (creature, small)
Transubstantiate (instant, flying)
Zealous Protector (creature, small, double strike, lifelink)
Inspirationist (creature, small, flash, flying, scry)
Scrypulse (instant, scry)
Spellslinging Augur (creature, small, foresight)
Impossible Horror (creature, medium, flying)
Portentious Shrike (creature, medium, flying, portent)
Deepwater Teachings (instant, portent)
Unravelling Thoughts (sorcery)
Mirror Ghoul (creature, small)
Vituperation of Flesh (sorcery, flashback)
Corrupt Seer (creature, small, foresight)
Tomb Whispers (sorcery, flashback)
Great Tower Bat (creature, small, flying)
Dalgath Ghastcaller (creature, medium, portent)
Embryo Thief (creature, small, foresight)
Raid the Library (sorcery)
Goblin Archer (creature, small)
Empty the Libraries (sorcery, mindstorm)
Mind Broken Mage (creature, small)
Ransack the Shelves (sorcery, madness)
Scroll Burner (creature, medium)
Peripatetic Bibliomancer (creature, small)
Dreamriver Boa (creature, small)
Rambunctious Cyclops (creature, medium, foresight)
Arena Champion (creature, small)
Centaur Nullifier (creature, small, portent)
Bearback Rider (creature, small, flash, portent)
Natural Instinct (instant)
Heroic End (instant, deathtouch, lifelink, portent)
Tower Relic (artifact)
Astral Magus (creature, small)
Sue For Peace (sorcery)
Protective Elder (creature, small, lifelink)
Leader of the Lost (creature, small, flying, soulsong)
Seerlord of the Blue Tower (legendary creature, medium, portent, foresight)
Ancestral Odyssey (sorcery, portent)
Lostsight Counsel (instant)
Amorphous Mass (creature, small)
Vile Mimic (creature, small)
Prophet of Doom (creature, small, foresight)
Ghastlord of the Black Tower (legendary creature, medium, flying, portent)
Deferred Pleasure (enchantment, foresight)
Deranged Librarian (creature, small)
Forkcaster Mage (creature, small, flash)
Call the Titans (sorcery, mindstorm)
Caliph of Tyrosh (creature, large, trample)
Battlefield Oracle (creature, small, scry)
Mass Conscription (sorcery, portent)
Evervine (creature, medium, haste)
Cyclopean Commander (creature, small)
Rageslaver (artifact)
Soulstoke Engine (artifact)
Carromantic Candle (artifact, foresight)
Staff of the Towers (artifact, scry)
CW01 — creature, small, flying, lifelink
CW02 — creature, small
CW03 — creature, small
CW04 — creature, small
CW05 — creature, small, defender
CW06 — creature, small, soulsong
CW07 — creature, small
CW08 — creature, small, flying
CW09 — creature, small, flying, soulsong
CW10 — creature, medium, soulsong
CW11 — instant
CW12 — instant, soulsong
CW13 — instant, lifelink
CW14 — enchantment, enchant, flying, soulsong
CU01 — creature, small, flying, portent
CU02 — creature, small, flying
CU03 — creature, small, portent
CU04 — creature, small, flying
CU05 — creature, small, foresight
CU06 — creature, large, defender
CU07 — sorcery, portent
CU08 — sorcery, portent
CU09 — instant
CU10 — instant
CU11 — instant, flashback
CU12 — instant
CU13 — instant, portent
CU14 — enchantment, enchant, foresight
CB01 — creature, small, unearth
CB02 — creature, small, foresight
CB03 — creature, small
CB04 — creature, small, flying, lifelink
CB05 — creature, small
CB06 — creature, small, intimidate
CB07 — creature, small
CB08 — creature, medium, deathtouch, unearth
CB09 — creature, medium
CB10 — sorcery
CB11 — sorcery, portent
CB12 — sorcery, flying, portent
CB13 — instant
CB14 — instant
CR01 — creature, small, haste
CR02 — creature, small, haste
CR03 — creature, small, first strike
CR04 — creature, small, first strike, foresight
CR05 — creature, small
CR06 — creature, medium, intimidate
CR07 — creature, medium, trample, madness
CR08 — creature, large
CR09 — sorcery, madness
CR10 — instant, mindstorm
CR11 — instant
CR12 — instant, madness
CR13 — instant
CR14 — enchantment, enchant, haste
CG01 — creature, small, foresight
CG02 — creature, small, intimidate, portent
CG03 — creature, small
CG04 — creature, small, portent
CG05 — creature, small, reach, foresight
CG06 — creature, medium, portent, foresight
CG07 — creature, medium, shroud, portent
CG08 — creature, medium, portent
CG09 — creature, large, trample
CG10 — sorcery, portent
CG11 — instant, flying
CG12 — instant
CG13 — instant
CG14 — enchantment, enchant, trample, portent
CC01 — artifact, equip, scry
CC02 — artifact, equip, protection
CC03 — artifact, scry
CC04 — artifact creature, small, flying, portent
CC05 — artifact creature, medium, portent
CC06 — land
CC07 — land
CC08 — land, scry
CC09 — land
CC10 — land
UW01 — creature, small, double strike, lifelink
UW02 — creature, small, vigilance, soulsong
UW03 — creature, small, flying, vigilance
UW04 — creature, small
UW05 — sorcery, flying, flashback
UW06 — instant, flying
UW07 — enchantment, defender, enchant
UU01 — creature, small, flash, flying, scry
UU02 — creature, small, foresight
UU03 — creature, medium, flying
UU04 — creature, medium, flying, portent
UU05 — sorcery
UU06 — instant, scry
UU07 — instant, portent
UB01 — creature, small
UB02 — creature, small, foresight
UB03 — creature, small, flying
UB04 — creature, small, foresight
UB05 — creature, medium, portent
UB06 — sorcery, flashback
UB07 — sorcery, flashback
UR01 — creature, small
UR02 — creature, small
UR03 — creature, small
UR04 — creature, medium
UR05 — sorcery
UR06 — sorcery, mindstorm
UR07 — sorcery, madness
UG01 — creature, small, flash, portent
UG02 — creature, small
UG03 — creature, small, portent
UG04 — creature, small
UG05 — creature, medium, foresight
UG06 — instant
UG07 — instant, deathtouch, lifelink, portent
UC01 — artifact
RW01 — creature, small
RW02 — creature, small, lifelink
RW03 — creature, small, flying, soulsong
RW04 — sorcery
RU01 — creature, small
RU02 — legendary creature, medium, portent, foresight
RU03 — sorcery, portent
RU04 — instant
RB01 — creature, small
RB02 — creature, small, foresight
RB03 — legendary creature, medium, flying, portent
RB04 — enchantment, foresight
RR01 — creature, small
RR02 — creature, small, flash
RR03 — creature, large, trample
RR04 — sorcery, mindstorm
RG01 — creature, small, scry
RG02 — creature, small
RG03 — creature, medium, haste
RG04 — sorcery, portent
RC01 — artifact
RC02 — artifact
RC03 — artifact, foresight
RC04 — artifact, scry