Chained to the Rocks | Enchantment | Aura | Enchant Mountain you control
When Chained to the Rocks enters the battlefield, exile target creature an opponent controls until Chained to the Rocks leaves the battlefield. (That creature returns under its owner's control.) | Aaron Miller
Soldier of the Pantheon | Creature | Human Soldier | Protection from multicolored
Whenever an opponent casts a multicolored spell, you gain 1 life. | Eric Deschamps
Swan Song | Instant | | Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying. | Peter Mohrbacher
Thoughtseize | Sorcery | | Target player reveals their hand. You choose a nonland card from it. That player discards that card. You lose 2 life. | Lucas Graciano
Firedrinker Satyr | Creature | Satyr Shaman | Whenever Firedrinker Satyr is dealt damage, it deals that much damage to you.
{1}{R}: Firedrinker Satyr gets +1/+0 until end of turn and deals 1 damage to you. | Anthony Palumbo
Mistcutter Hydra | Creature | Hydra | This spell can't be countered.
Haste, protection from blue
Mistcutter Hydra enters the battlefield with X +1/+1 counters on it. | Ryan Pancoast
Pyxis of Pandemonium | Artifact | | {T}: Each player exiles the top card of their library face down.
{7}, {T}, Sacrifice Pyxis of Pandemonium: Each player turns face up all cards they own exiled with Pyxis of Pandemonium, then puts all permanent cards among them onto the battlefield. | David Palumbo