This spell costs {1} less to cast for each instant and sorcery card in your graveyard.

Prowess

When Bedlam Reveler enters the battlefield, discard your hand, then draw three cards.

If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on it instead.

{4}{B}{B}: Exile target creature and put a +1/+1 counter on Dark Impostor.

Dark Impostor has all activated abilities of all creature cards exiled with it.

Whenever another creature dies, you may put a +1/+1 counter on Deathbringer Thoctar.

Remove a +1/+1 counter from Deathbringer Thoctar: It deals 1 damage to any target.

{1}{U}{B}: Exile target creature card from a graveyard. Dimir Doppelganger becomes a copy of that card, except it has this ability.

Inspired -- Whenever Disciple of Deceit becomes untapped, you may discard a nonland card. If you do, search your library for a card with the same mana value as that card, reveal it, put it into your hand, then shuffle.

Whenever an enchantment is put into a graveyard from the battlefield, draw a card.

{2}{G/U}, {Q}: Double the number of each kind of counter on target permanent. ({Q} is the untap symbol.)

Other blue creatures you control get +1/+1.

{U}: Target artifact creature becomes blue until end of turn.

Tap an untapped blue creature you control: Add {C}{C}. Spend this mana only to cast artifact spells or activate abilities of artifacts.

Whenever a player casts a noncreature spell, each of that player's opponents may draw a card.

When Imperial Recruiter enters the battlefield, search your library for a creature card with power 2 or less, reveal it, put it into your hand, then shuffle.

Whenever a player casts an instant or sorcery spell, if that spell targets only Ink-Treader Nephilim, copy the spell for each other creature that spell could target. Each copy targets a different one of those creatures.

Knight of the Reliquary gets +1/+1 for each land card in your graveyard.

{T}, Sacrifice a Forest or Plains: Search your library for a land card, put it onto the battlefield, then shuffle.

Flying

Will of the council -- When Magister of Worth enters the battlefield, starting with you, each player votes for grace or condemnation. If grace gets more votes, each player returns each creature card from their graveyard to the battlefield. If condemnation gets more votes or the vote is tied, destroy all creatures other than Magister of Worth.

Whenever another creature with power 2 or less enters the battlefield under your control, you may pay {1}. If you do, draw a card.

{2}{W}{U}: Exile target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Whenever you cast a noncreature spell, create a 1/1 white Monk creature token with prowess.

{1}{B}: Exile target card from an opponent's graveyard. If no cards are in that graveyard, flip Nezumi Graverobber.

{4}{B}: Put target creature card from a graveyard onto the battlefield under your control.

Exile an instant or sorcery spell you control: Put two +1/+1 counters on Nivmagus Elemental. (That spell won't resolve.)

When Nucklavee enters the battlefield, you may return target red sorcery card from your graveyard to your hand.

When Nucklavee enters the battlefield, you may return target blue instant card from your graveyard to your hand.

Trample

Whenever a source deals damage to Phyrexian Obliterator, that source's controller sacrifices that many permanents.

Double strike, trample

Whenever Prophetic Flamespeaker deals combat damage to a player, exile the top card of your library. You may play it this turn.

Haste

Whenever a creature you control deals combat damage to a player, put a +1/+1 counter on it.

Ferocious -- {2}{G/U}{G/U}: Draw a card for each creature you control with power 4 or greater.

Play with the top card of your library revealed.

As long as the top card of your library is an artifact or creature card, Skill Borrower has all activated abilities of that card. (If any of the abilities use that card's name, use this creature's name instead.)

Lifelink

Instant and sorcery spells you control have lifelink.

{2}{U/R}{U/R}: The next time you cast an instant or sorcery spell from your hand this turn, put that card into your hand instead of into your graveyard as it resolves.

Vigilance

{1}{W}, {T}: Search your library for an Equipment card, put it onto the battlefield, attach it to a creature you control, then shuffle.

Whenever a noncreature source you control deals damage, you gain that much life.

Defender

Thing in the Ice enters the battlefield with four ice counters on it.

Whenever you cast an instant or sorcery spell, remove an ice counter from Thing in the Ice. Then if it has no ice counters on it, transform it.

When this creature transforms into Awoken Horror, return all non-Horror creatures to their owners' hands.

Landfall -- Whenever a land enters the battlefield under your control, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Whenever you sacrifice a Clue, put a +1/+1 counter on Tireless Tracker.

Wayfaring Temple's power and toughness are each equal to the number of creatures you control.

Whenever Wayfaring Temple deals combat damage to a player, populate. (Create a token that's a copy of a creature token you control.)