Suffocating Fumes

Creatures your opponents control get -1/-1 until end of turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Ponder

Look at the top three cards of your library, then put them back in any order. You may shuffle.
Draw a card.

Draw three cards, then put two cards from your hand on top of your library in any order.

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.

When this creature enters, return target instant or sorcery card from your graveyard to your hand.

When this creature enters, target opponent puts a card from their hand on top of their library.

({T}: Add {U} or {B}.)
This land enters tapped.

If you control a Swamp, you may pay 4 life rather than pay this spell's mana cost.
Destroy target nonblack creature. It can't be regenerated.

Draw three cards.
Islandcycling {1} ({1}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {U}{B}.

Whenever you cast an instant or sorcery spell, create a 1/1 blue Bird Illusion creature token with flying.