Sneak Attack (Retro) [Dominaria Remastered] BT4-084 where X is the number

where X is the number of cards in your hand minus 4

Add 1 card with [Insectoid] or [Machine] in its traits and 1 [X Antibody] among them to your hand

Claimed by Gix and a creature named Phyrexian Dragon Engine are attacking

Warrior Element: Norm Class: Warrior Power: 1 Memory Cost: 1 Durability: 2 [Class Bonus] Remove a durability counter from Clarent: Prevent the next 1 non-attack damage that would be dealt to each unit you control this turn

instead they exile the top card of their library

Sneak Attack (Retro) [Dominaria Remastered] BT4-084 where X is the numberSet: Dominaria Remastered Type: Enchantment Rarity: Mythic Cost: {3}{R} {R}: You may put a creature card from your hand onto the battlefield. That creature gains haste. Sacrifice the creature at the beginning of the next end step. Nothin' beat surprise'cept rock.