Illusionary Mask [International Collectors' Edition]Set: International Collectors' Edition Type: Artifact Rarity: Rare Cost: {2} {X}: You may choose a creature card in your hand whose mana cost could be paid by some amount of, or all of, the mana you spent on {X}. If you do, you may cast that card face down as a 2 2 creature spell without paying its mana cost. If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage, be dealt damage, or become

−X: Search your library for an artifact card with converted mana cost X or less and put it onto the battlefield

Battlefield Forge deals 1 damage to you

"I know just the person for that job

Set: Dominaria Prerelease Promos Type: Legendary Artifact — Equipment Rarity: Rare Cost: {4} At the beginning of combat on your turn

Set: Unlimited Edition Type: Creature — Elf Archer Rarity: Rare Cost: {1}{G} First strike

you may spend mana as though it were mana of any type to pay that spell's mana cost

" —Emily Dickinson

Crimson Manticores can be fearsome allies

Set: Beta Edition Type: Creature — Troll Rarity: Rare Cost: {2}{R} Sedge Troll gets +1/+1 as long as you control a Swamp

I simply reveal

Each player may play lands and cast spells from among cards they exiled with Uba Mask this turn

As easy to stop as it is to comprehend