At the beginning of your upkeep, you may put a charge counter on this artifact.
{T}: You may put a creature card with mana value equal to the number of charge counters on this artifact from your hand onto the battlefield.
Mana cost
1
Mana value
1
Printings
From
$2.05
EDHREC rank
#5828
Buy
Formats
Modern
Legal
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
17 Nov 2017
If Aether Vial leaves the battlefield while its second ability is on the stack, use its last known number of charge counters to determine what you may put from your hand onto the battlefield.
17 Nov 2017
If a card in a player's hand has {X} in its mana cost, X is considered to be 0.