Tephraderm [Onslaught] Archenemy you may gain life equal

you may gain life equal to its power

where X is the number of +1/+1 counters on Chasm Skulker

Set: Kaladesh Type: Artifact Rarity: Common Cost: {2} When Cogworker's Puzzleknot enters the battlefield

Set: Return to Ravnica Type: Creature — Human Soldier Common Cost: {1}{W} When Azorius Arrester enters the battlefield

{3}: Urza's Engine gains banding until end of turn

Tephraderm [Onslaught] Archenemy you may gain life equalSet: Onslaught Type: Creature Beast Rare Cost: {4}{R} Whenever a creature deals damage to Tephraderm, Tephraderm deals that much damage to that creature. Whenever a spell deals damage to Tephraderm, Tephraderm deals that much damage to that spell's controller.