Regress [Mirrodin]

Regress [Mirrodin]Set: Mirrodin Type: Instant Rarity: Common Cost: {2}{U} Return target permanent to its owner's hand. "Once cast, a spell can be undone. But once revealed, a secret can never again be kept." Pontifex, elder researcher

along with some additional cards to help support them

Tibalt Type: Instant Rarity: Uncommon Cost: {W}{B} Until end of turn

yet ephemeral

Set: Fate Reforged Type: Creature — Beast Rarity: Common Cost: {4}{G} In a stunning act of diplomacy

Set: Urza's Legacy Type: Creature — Viashino Rarity: Uncommon Cost: {2}{R} {1}{R}

create a 2/2 green Wolf creature token and you gain 2 life

Set: EX: Deoxys Type: Grass Rarity: Common Retreat cost: Colorless

Choking Sands deals 2 damage to the land's controller

Set: Sun & Moon: Detective Pikachu Type: Fighting Rarity: Holo Rare Retreat cost: Colorless

Set: Mercadian Masques Type: Creature — Horror Mercenary Rarity: Common Cost: {1}{B} Flying

It's much easier to list the places they *haven't* been

Set: Lorwyn Type: Tribal Enchantment — Elemental Rarity: Rare Cost: {1}{G} Whenever an opponent casts a blue spell during your turn