Wonder

Flying
As long as Wonder is in your graveyard and you control an Island, creatures you control have flying.

Putrid Imp

Discard a card: Putrid Imp gains flying until end of turn.
Threshold — As long as seven or more cards are in your graveyard, Putrid Imp gets +1/+1 and can't block.

Zombie Infestation

Discard two cards: Create a 2/2 black Zombie creature token.

Upheaval

Return all permanents to their owners' hands.

Polluted Delta

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

Island

Underground River

{T}: Add {C}.
{T}: Add {U} or {B}. Underground River deals 1 damage to you.

Diabolic Edict

Target player sacrifices a creature of their choice.

Squee, Goblin Nabob

At the beginning of your upkeep, you may return Squee, Goblin Nabob from your graveyard to your hand.

Nightscape Familiar

Blue spells and red spells you cast cost {1} less to cast.
{1}{B}: Regenerate Nightscape Familiar.

Buried Alive

Search your library for up to three creature cards, put them into your graveyard, then shuffle.

Gush

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost.
Draw two cards.

Swamp

Foil

You may discard an Island card and another card rather than pay this spell's mana cost.
Counter target spell.