Return target creature to its owner's hand. Then that creature's controller may pay {U}{U}. If the player does, they may copy this spell and may choose a new target for that copy.
Instant and sorcery spells players cast have demonstrate. Whenever chaos ensues, return up to one target instant or sorcery card from a graveyard to its owner's hand.
If a source would deal damage to a permanent or player, it deals double that damage instead. Whenever chaos ensues, Stronghold Furnace deals 1 damage to any target.
Players may look at the top card of their library at any time and may play cards from the top of their library. The top card of each player's library is a Food artifact. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 Life." Activate this ability from the top of the library.) Chaos: You may sacrifice a Food. If you do, draw a card, gain three life and each opponent loses 3 life.
Counter target noncreature spell unless its controller pays {1}. Ferocious — If you control a creature with power 4 or greater, counter that spell instead.
{T}: Add {C}. {1}, {T}: Add one mana of any color. When you spend this mana to cast your commander, scry X, where X is the number of times it's been cast from the command zone this game.
{0}: If damage would be dealt to you this turn by a source of your choice, prevent that damage. Stuffy Doll Avatar deals damage to you and target opponent or planeswalker equal to half the damage prevented this way, rounded up. Activate only once each turn.
Subterranean Hangar enters tapped. {T}: Put a storage counter on Subterranean Hangar. {T}, Remove any number of storage counters from Subterranean Hangar: Add {B} for each storage counter removed this way.
Subterranean Tremors deals X damage to each creature without flying. If X is 4 or more, destroy all artifacts. If X is 8 or more, create an 8/8 red Lizard creature token.