Aether Vial - [Foil] Kaladesh Inventions (MPS)At the beginning of your upkeep, you may put a charge counter on Aether Vial. {T}: You may put a creature card with mana value equal to the number of charge counters on Aether Vial from your hand onto the battlefield.

this beloved

that player discards a card and you untap all lands you control

"Don't just have an idea—have all of them

but which would you rather have when it's raining

Learn from them

({S} can be paid with one mana from a snow source

) When Aven Riftwatcher enters or leaves the battlefield

1x Borderless Alt-Art Acidic Slime

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control

Whenever an opponent casts their second spell each turn

*that's* what that switch does

Cut deals 4 damage to target creature