Whenever Arabella attacks, it deals X damage to each opponent and you gain X life, where X is the number of creatures you control with power 2 or less.

Flying Whenever this creature or another creature you control dies, each opponent sacrifices a creature of their choice.

Whenever you cast a creature spell, create X 1/1 black Thrull creature tokens, where X is that spell's mana value. When you control seven or more Thrulls, sacrifice Endrek Sahr.

Whenever you attack, you may sacrifice another creature or an artifact. If you do, create a 4/1 black Skeleton creature token with menace that's tapped and attacking. (It can't be blocked except by two or more creatures.) Choose a Background (You can have a Background as a second commander.)

Flying Whenever you create or sacrifice a token, each opponent loses 1 life.

Flying, lifelink, haste Whenever Otharri attacks, you get an experience counter. Then create a 2/2 red Rebel creature token that's tapped and attacking for each experience counter you have. {2}{R}{W}, Tap an untapped Rebel you control: Return this card from your graveyard to the battlefield tapped.

Creatures you control get +1/+1 for each time you've cast your commander from the command zone this game.

As an additional cost to cast this spell, discard a card or pay 3 life. Destroy target creature or planeswalker.

Crackling Doom deals 2 damage to each opponent. Each opponent sacrifices a creature with the greatest power among creatures that player controls.