Steam Vents [Guildpact] Urza's Legacy each defending player chooses any

each defending player chooses any number of creatures they control and divides them into a number of piles equal to the number of attacking creatures for whom that player is the defending player

that creature gets +1/+1 until end of turn

destroy Cosmic Horror unless you pay {3}{B}{B}{B}

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {3} You may choose not to untap Vedalken Shackles during your untap step

' priceless

Steam Vents [Guildpact] Urza's Legacy each defending player chooses anySet: Guildpact Type: Land Island Mountain Rarity: Rare ({T}: Add {U} or {R}.) As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.