Confusion in the Ranks [Mirrodin] Battle Royale Set: Tempest Type: Creature —

Set: Tempest Type: Creature — Insect Rarity: Rare Cost: {1}{R} Whenever Shocker deals damage to a player

Set: Commander Anthology Type: Creature — Elemental Beast Rarity: Rare Cost: {5}{G} When Grave Sifter enters the battlefield

Its controller may draw up to two cards at the beginning of the next turn's upkeep

Then they saw it was coming from everywhere

Confusion in the Ranks [Mirrodin] Battle Royale Set: Tempest Type: Creature —Set: Mirrodin Type: Enchantment Rarity: Rare Cost: {3}{R}{R} Whenever an artifact, creature, or enchantment enters the battlefield, its controller chooses target permanent another player controls that shares a card type with it. Exchange control of those permanents.