Flying

Whenever Ancient Copper Dragon deals combat damage to a player, roll a d20. You create a number of Treasure tokens equal to the result.

Charcoal Diamond enters the battlefield tapped.

: Add .

When Displacer Beast enters the battlefield, venture into the dungeon. (Enter the first room or advance to the next room.)

Displacement — : Return Displacer Beast to its owner's hand.

Engulf — When Gelatinous Cube enters the battlefield, exile target non-Ooze creature an opponent controls until Gelatinous Cube leaves the battlefield.

Dissolve — : Put target creature card with mana value X exiled with Gelatinous Cube into its owner's graveyard.

: Roll a d20. Activate only if Loathsome Troll is in your graveyard.

1–9 | Put Loathsome Troll on top of your library.

10–19 | Return Loathsome Troll to your hand.

20 | Return Loathsome Troll to the battlefield tapped.

When Minsc, Beloved Ranger enters the battlefield, create Boo, a legendary 1/1 red Hamster creature token with trample and haste.

: Until end of turn, target creature you control has base power and toughness X/X and becomes a Giant in addition to its other types. Activate only as a sorcery.

Vigilance

Whenever Nadaar, Selfless Paladin enters the battlefield or attacks, venture into the dungeon. (Enter the first room or advance to the next room.)

Other creatures you control get +1/+1 as long as you've completed a dungeon.

Each creature you control assigns combat damage equal to its toughness rather than its power.

Whenever Rasaad yn Bashir attacks, if you have the initiative, double the toughness of each creature you control until end of turn.

Choose a Background (You can have a Background as a second commander.)

Wight enters the battlefield tapped.

Life Drain — Whenever a creature dealt damage by Wight this turn dies, create a tapped 2/2 black Zombie creature token and exile that card.