Market price
- Near Mint
- $2.05
- Lightly Played
- $1.51
- Moderately Played
- $1.17
- Heavily Played
- $0.83
- Damaged
- $0.70
- Near Mint
- $2.05
- Lightly Played
- $1.51
- Moderately Played
- $1.17
- Heavily Played
- $0.83
Buy
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Whenever this creature attacks and isn't blocked, you may have defending player activate a mana ability of each land they control and lose all unspent mana. If you do, this creature assigns no combat damage this turn and at the beginning of your next main phase this turn, you add an amount of 
equal to the amount of mana that player lost this way.
2/2
Illustrated by Steve White
Rulings (2)
Apr 15, 2013
A mana ability is an ability that (1) isn't a loyalty ability, (2) doesn't target, and (3) could add mana when it resolves.
Apr 15, 2013
An ability that triggers when something "attacks and isn't blocked" triggers in the declare blockers step after blockers are declared if (1) that creature is attacking and (2) no creatures are declared to block it. It will trigger even if that creature was put onto the battlefield attacking rather than having been declared as an attacker in the declare attackers step.