Palladia-Mors

Flying, trample
At the beginning of your upkeep, sacrifice Palladia-Mors unless you pay .

Nicol Bolas

Flying
At the beginning of your upkeep, sacrifice Nicol Bolas unless you pay .
Whenever Nicol Bolas deals damage to an opponent, that player discards their hand.

Arcades Sabboth

Flying
At the beginning of your upkeep, sacrifice Arcades Sabboth unless you pay .
Each untapped creature you control gets +0/+2 as long as it’s not attacking.
: Arcades Sabboth gets +0/+1 until end of turn.

Killer Bees

Flying
: Killer Bees gets +1/+1 until end of turn.

Dancing Scimitar

Flying (This creature can’t be blocked except by creatures with flying or reach.)

Serendib Efreet

Flying
At the beginning of your upkeep, Serendib Efreet deals 1 damage to you.

Sengir Vampire

Flying (This creature can’t be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by Sengir Vampire this turn dies, put a +1/+1 counter on Sengir Vampire.

Mesa Pegasus

Flying; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature’s combat damage, not its controller, among any of the creatures it’s being blocked by or is blocking.)

Phantasmal Forces

Flying
At the beginning of your upkeep, sacrifice Phantasmal Forces unless you pay .

Sengir Vampire

Flying (This creature can’t be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by Sengir Vampire this turn dies, put a +1/+1 counter on Sengir Vampire.

Shivan Dragon

Flying (This creature can’t be blocked except by creatures with flying or reach.)
: Shivan Dragon gets +1/+0 until end of turn.

Dragon Whelp

Flying
: Dragon Whelp gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice Dragon Whelp at the beginning of the next end step.

Serendib Efreet

Flying
At the beginning of your upkeep, Serendib Efreet deals 1 damage to you.

Cockatrice

Flying
Whenever Cockatrice blocks or becomes blocked by a non-Wall creature, destroy that creature at end of combat.

Lord of the Pit

Flying, trample
At the beginning of your upkeep, sacrifice a creature other than Lord of the Pit. If you can’t, Lord of the Pit deals 7 damage to you.

Nightmare

Flying (This creature can’t be blocked except by creatures with flying or reach.)
Nightmare’s power and toughness are each equal to the number of Swamps you control.

Dragon Whelp

Flying
: Dragon Whelp gets +1/+0 until end of turn. If this ability has been activated four or more times this turn, sacrifice Dragon Whelp at the beginning of the next end step.

Hypnotic Specter

Flying
Whenever Hypnotic Specter deals damage to an opponent, that player discards a card at random.

Will-o’-the-Wisp

Flying (This creature can’t be blocked except by creatures with flying or reach.)
: Regenerate Will-o’-the-Wisp. (The next time this creature would be destroyed this turn, it isn’t. Instead tap it, remove all damage from it, and remove it from combat.)