Aetherflux Reservoir [Mystery Booster] Rise of the Eldrazi who has a choice of

who has a choice of 2 bare heads

you may change "swampwalk" to "plainswalk

Set: Collectors' Edition Type: Creature — Elemental Rarity: Rare Cost: {2}{G}{G}{G}{G} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking

You may spend blue mana as though it were mana of any color to pay the activation costs of Quicksilver Elemental's abilities

Each land of the chosen type has phasing

Aetherflux Reservoir [Mystery Booster] Rise of the Eldrazi who has a choice ofSet: Mystery Booster Type: Artifact Rarity: Rare Cost: {4} Whenever you cast a spell, you gain 1 life for each spell you've cast this turn. Pay 50 life: Aetherflux Reservoir deals 50 damage to any target. While most power is used for ordinary, everyday tasks, one shouldn't underestimate its potential for the extraordinary.