Distended Mindbender

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, target opponent reveals their hand. You choose from it a nonland card with mana value 3 or less and a card with mana value 4 or greater. That player discards those cards.

Decimator of the Provinces

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, creatures you control get +2/+2 and gain trample until end of turn.
Trample, haste

It of the Horrid Swarm

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, create two 1/1 green Insect creature tokens.

Abundant Maw

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, target opponent loses 3 life and you gain 3 life.

Wretched Gryff

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, draw a card.
Flying

Elder Deep-Fiend

Flash
Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, tap up to four target permanents.

Abundant Maw

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, target opponent loses 3 life and you gain 3 life.

It of the Horrid Swarm

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, create two 1/1 green Insect creature tokens.

Wretched Gryff

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, draw a card.
Flying

Elder Deep-Fiend

Flash
Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, tap up to four target permanents.

Decimator of the Provinces

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, creatures you control get +2/+2 and gain trample until end of turn.
Trample, haste

Drownyard Behemoth

Flash (You may cast this spell any time you could cast an instant.)
Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
Drownyard Behemoth has hexproof as long as it entered this turn.

Vexing Scuttler

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, you may return target instant or sorcery card from your graveyard to your hand.

Abundant Maw

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, target opponent loses 3 life and you gain 3 life.

Distended Mindbender

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, target opponent reveals their hand. You choose from it a nonland card with mana value 3 or less and a card with mana value 4 or greater. That player discards those cards.

It of the Horrid Swarm

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, create two 1/1 green Insect creature tokens.

Mockery of Nature

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, you may destroy target artifact or enchantment.

Elder Deep-Fiend

Flash
Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, tap up to four target permanents.

Wretched Gryff

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, draw a card.
Flying

Lashweed Lurker

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s mana value.)
When you cast this spell, you may put target nonland permanent on top of its owner’s library.