Serpent Generator [Legends] Colorless [+30] You can only use each

You can only use each effect of "Platinum Gadget" once per turn

Set: Portal Three Kingdoms Type: Creature — Goat Rarity: Common Cost: {R} Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain

Liliana learned the secrets she sought

Set: Amonkhet Invocations Type: Sorcery Rarity: Mythic Cost: {1}{B} As an additional cost to cast this spell

Its controller loses 3 life

Serpent Generator [Legends] Colorless [+30] You can only use eachSet: Legends Type: Artifact Rarity: Rare Cost: {6} {4}, {T}: Create a 1 1 colorless Snake artifact creature token. It has "Whenever this creature deals damage to a player, that player gets a poison counter." (A player with ten or more poison counters loses the game.)