At the beginning of your first main phase, add {B} for each charge counter on this artifact.
{7}, {T}: Destroy target creature. Then put a charge counter on this artifact.
Mana cost
7
Mana value
7
Printings
From
$0.41
EDHREC rank
#21691
Buy
Formats
Modern
Legal
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
4 Oct 2004
The precombat main phase is the first main phase of the turn. All others are postcombat main phases, even if they technically occur before combat.
1 Dec 2004
You put the counter on Altar of Shadows even if the creature regenerates.