Altar of Bone [Ice Age] Modern Masters Tokens these devices doubled the output

these devices doubled the output of Amrit Vatyam's forges

Set: Portal Three Kingdoms Type: Sorcery Rarity: Rare Cost: {3}{B} You draw three cards and you lose 3 life

Set: Tempest Type: Creature — Elemental Rarity: Rare Cost: {5}{G}{G}{G} At the beginning of each upkeep

(It can't be blocked as long as defending player controls a Forest

Set: Amonkhet Invocations Type: Legendary Creature — God Rarity: Mythic Cost: {2}{B} Menace

Altar of Bone [Ice Age] Modern Masters Tokens these devices doubled the outputSet: Ice Age Type: Sorcery Rarity: Rare Cost: {G}{W} As an additional cost to cast this spell, sacrifice a creature. Search your library for a creature card, reveal that card, and put it into your hand. Then shuffle your library.