Ai Nanahira

Bruvac the Grandiloquent

If an opponent would mill one or more cards, they mill twice that many cards instead.

If an opponent would mill one or more cards, they mill twice that many cards instead. (To mill a card, a player puts the top card of their library into their graveyard.)

Krenko, Mob Boss

{T}: Create X 1/1 red Goblin creature tokens, where X is the number of Goblins you control.

Koth, Fire of Resistance

+2: Search your library for a basic Mountain card, reveal it, put it into your hand, then shuffle.
−3: Koth, Fire of Resistance deals damage to target creature equal to the number of Mountains you control.
−7: You get an emblem with "Whenever a Mountain enters the battlefield under your control, this emblem deals 4 damage to any target."

[+2]: Search your library for a basic Mountain card, reveal it, put it into your hand, then shuffle.
[−3]: Koth, Fire of Resistance deals damage to target creature equal to the number of Mountains you control.
[−7]: You get an emblem with "Whenever a Mountain you control enters, this emblem deals 4 damage to any target."

"That was a Consulate spy thopter. Leave the caterpillar to its meal."
—Pia Nalaar, renegade inventor

Caustic Caterpillar

{1}{G}, Sacrifice Caustic Caterpillar: Destroy target artifact or enchantment.

Jin-Gitaxias, Progress Tyrant

Whenever you cast an artifact, instant, or sorcery spell, copy that spell. You may choose new targets for the copy. This ability triggers only once each turn. (A copy of a permanent spell becomes a token.)
Whenever an opponent casts an artifact, instant, or sorcery spell, counter that spell. This ability triggers only once each turn.

Sengir Vampire

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by Sengir Vampire this turn dies, put a +1/+1 counter on Sengir Vampire.

Jin-Gitaxias, Progress Tyrant // Jin-Gitaxias, Progress Tyrant

Ghostly Prison

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.