msem-instigator

Whenever a creature enters the battlefield under an opponent's control, you may have that player lose 1 life.
Unveil {2}{B}{R} ({2}{B}{R}: Transform this. Unveil only as a sorcery.)

Flying
Whenever you cast a spell, create a 1/1 blue Boar Dragon creature token with flying.

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)
Attain {4}{U} ({4}{U}: Transform this. Spend at least three colors of mana to activate this, and only as a sorcery.)

Whenever you cast a Rogue spell or a spell from exile, you may return Cobri to her owner's hand.

Combined Generator can't be blocked except by three or more creatures.

Spells you cast from exile cost {1} less to cast.

Destroy target creature. (Cast a copy of this spell once while this creature is on the battlefield.)

Legacy (You may play this side of this card only from your graveyard. Exile it if it would leave the battlefield or not resolve.)
Whenever a Warrior you control becomes the target of a spell or ability an opponent controls, that player loses 1 life and discards a card, then you draw a card and gain 1 life.

Level experience (Whenever this creature attacks, if it has fewer than three level counters on it, put a level counter on it.)
When Copperhide Calf has three or more level counters on it, remove them all and transform it. [2/2]
[level 1-3] Prevent the first 1 damage that would be dealt to Copperhide Calf each turn. [3/3]

Flying
When Cormoran, Raven Monarch enters the battlefield, you may put target creature card with mana value 3 or less from a graveyard onto the battlefield under your control.

(Transform this if it's not attached to a creature. Pay {3}{B} as a sorcery to unattach it.)
Enchant creature you control
Corrupted Mount's rider gets +5/+4 and can't block.

You can't lose the game.
At the beginning of your upkeep, put Cradle of the Sun on the bottom of your library and your life total becomes 4.

Flying
At the beginning of combat on your turn, create a 5/5 red Dragon creature token with flying and haste. That token attacks this combat if able.

{T}, Tap two other untapped creatures you control: Add two mana of any one color.

Shuffle your hand and graveyard into your library, then draw a card for each spell you cast this turn.

You may look at the top card of your library.
{T}: You may play the top card of your library.

Deathtouch
Whenever an Egg you control dies, you may return an exiled card on an Adventure to its owner's hand.

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
Curious Cubs has first strike as long as its attacking.
When Curious Cubs has three or more +1/+1 counters on it, remove them all and transform it.

{1}, Sacrifice Curious Fossil: Scry 2.
{2}{U}: Return Curious Fossil from your graveyard to the battlefield transformed. Activate only during your turn.

Indestructible
Whenever Cyrukan attacks, choose one —
• Create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)
• Create a Weapon token and attach it to target creature you control. (It's an Equipment artifact with equip {2} and “Equipped creature gets +1/+1.”)
At the beginning of each end step, if you control three or more tokens, transform Cyrukan.

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Frontiers Anew {G}
Sorcery — Adventure
Search your library for a basic land card, reveal it, put it into your hand, then shuffle. (Then exile this card. You may cast the creature later from exile.)

When Danawan Wanderer enters the battlefield, you may tap or untap target creature.
Ascend {2}{G} ({2}{G}: Exile this creature, then return it to the battlefield transformed. Ascend only as a sorcery.)

Flying
At the beginning of your upkeep, if you have at least two more cards in hand than any opponent, scry 1.

Flash
When Daughter of Tempests enters, target creature an opponent controls gets -2/-0 until end of turn.
Attain {3}{U} ({3}{U}: Transform this. Spend at least three colors of mana to activate this, and only as a sorcery.)

{W}, {T}: Target attacking creature gets +1/+1 until end of turn. This ability costs {W} less to activate if it targets a Soldier.