Singles

{B}: Nakaya Shade gets +1/+1 until end of turn unless any player pays {2}.

If an opponent controls seven or more lands, this spell costs {6} less to cast. Flying {R}: Avatar of Fury gets +1/+0 until end of turn.

At the beginning of your upkeep, sacrifice Whipstitched Zombie unless you pay {B}.

At the beginning of each player's upkeep, that player mills a card. Then they create X 1/1 black Minion creature tokens, where X is the milled card...

Flash Enchant creature Enchanted creature gets -3/-0.

Exile target attacking creature unless its controller pays {X}.

Target player discards a card at random. Then that player discards another card at random unless they pay {1}.

Fen Stalker has fear as long as you control no untapped lands. (It can't be blocked except by artifact creatures and/or black creatures.)

{4}: Return target creature card from a graveyard to its owner's hand. Any player may activate this ability but only as a sorcery.

Destroy target land. Its controller loses 2 life.

Whenever Death Charmer deals combat damage to a creature, that creature's controller loses 2 life unless they pay {2}.

Sacrifice two lands: Return Coffin Puppets from your graveyard to the battlefield. Activate only during your upkeep and only if you control a Swamp.

Sacrifice two lands: Return Coffin Puppets from your graveyard to the battlefield. Activate only during your upkeep and only if you control a Swamp.

Flying, vigilance

{B}: Regenerate Chilling Apparition. Whenever Chilling Apparition deals combat damage to a player, that player discards a card.

Flying {T}, Sacrifice a land: Search your library for a Mercenary permanent card with mana value 2 or less, put it onto the battlefield, then shuffle.

Protection from white At the beginning of your upkeep, sacrifice Bog Elemental unless you sacrifice a land.

If there are ten or more creature cards total in all graveyards, this spell costs {6} less to cast. Fear (This creature can't be blocked except by...

{1}{B}, Sacrifice a land: Target creature gets +2/+0 until end of turn.

Return target creature to its owner's hand. Then return another target creature to its owner's hand unless its controller pays {1}.

Flying At the beginning of your end step, tap all lands you control.

Enchant land Enchanted land has "{T}: Counter target spell unless its controller pays {1}."

Flying Sacrifice a land: Return Stormwatch Eagle to its owner's hand.

Celestial Convergence enters the battlefield with seven omen counters on it. At the beginning of your upkeep, remove an omen counter from Celestial...