As an additional cost to cast this spell, you may waterbend . (While paying a waterbend cost, you can tap your artifacts and creatures to help. Each one pays for .)

All creatures get -2/-2 until end of turn. If this spell's additional cost was paid, whenever a creature dies this turn, you gain 1 life.

As an additional cost to cast this spell, sacrifice a creature.

Target creature gets +4/+2 until end of turn.

As an additional cost to cast this spell, pay 3 life.

Counter target creature spell.

As an additional cost to cast this spell, exile X creature cards from your graveyard.

Target creature gets -X/-X until end of turn.

As an additional cost to cast this spell, blight 1 or pay . (To blight 1, put a -1/-1 counter on a creature you control.)

Exile target creature.

All creatures get -1/-1 until end of turn. Creatures that are green and/or white get an additional -2/-2 until end of turn.

This spell costs less to cast if it targets a white creature.

Target creature gets -4/-4 until end of turn.

All creatures get -2/-2 until end of turn.

All creatures get -2/-2 until end of turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

As an additional cost to cast this spell, reveal a creature card from your hand.

Target creature gets -X/-X until end of turn, where X is the revealed card's mana value.

As an additional cost to cast this spell, put a -1/-1 counter on a creature you control.

Destroy target creature.

As an additional cost to cast this spell, sacrifice a Goblin.

Target creature gets -5/-5 until end of turn. Fodder Launch deals 5 damage to that creature's controller.

All creatures get -1/-1 until end of turn.

Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

As an additional cost to cast this spell, sacrifice two creatures.

Destroy target artifact.

As an additional cost to cast this spell, exile a creature you control.

Exile target creature or planeswalker.

Target creature gets -2/-2 until end of turn. It gets an additional -1/-1 until end of turn for each modified creature you controlled as you cast this spell. (Equipment, Auras you control, and counters are modifications.)

Mayhem (You may cast this card from your graveyard for if you discarded it this turn. Timing rules still apply.)

All creatures get -2/-2 until end of turn. If this spell's mayhem cost was paid, creatures your opponents control get -2/-2 until end of turn instead.

All creatures get -4/-4 until end of turn.