Cavern-Hoard Dragon

This spell costs less to cast for each card type among permanents you've sacrificed this turn.

Flying, trample, haste

Whenever Korvold deals combat damage to a player, put X +1/+1 counters on Korvold and draw X cards, where X is the number of permanent types among cards in your graveyard.

Assist (Another player can pay up to of this spell's cost.)

Flying

When this creature enters, it deals 4 damage to target creature an opponent controls.

This spell costs less to cast, where X is the greatest power among creatures you control.

Trample

Flying

When this creature enters, it deals damage to target creature equal to the number of Mountains you control.

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Flying, haste

Whenever Chiss-Goria attacks, exile the top five cards of your library. You may cast an artifact spell from among them this turn. If you do, it has affinity for artifacts.

This spell costs less to cast for each (energy counter) you've paid or lost this turn.

Haste

Whenever this creature attacks, you get , then you may pay eight . When you do, this creature deals 8 damage divided as you choose among up to eight targets.