Thunderblade Charge | Magic: The Gathering
Formats Thunderblade Charge is Legal in
Official Oracle Text for Thunderblade Charge
Whenever one or more creatures you control deal combat damage to a player, if Thunderblade Charge is in your graveyard, you may pay . If you do, you may cast it without paying its mana cost.
Official Rulings for Thunderblade Charge
5/1/2007 : Thunderblade Charge triggers only once per combat damage step no matter how many of your creatures deal combat damage to a player, how much damage is dealt, or who that player is. (It might be you if the combat damage is redirected.) However, the ability could trigger twice in the same turn if there are multiple combat damage steps due to first strike or double strike.