Card Rulings:Heroic Challenger - Thousand Blades

OCG Rulings

 * "Once per turn: You can discard 1 "Heroic" card; Special Summon 1 "Heroic" monster from your Deck, and if you do, change this card to Defense Position. If you activate this effect, you cannot Special Summon any monsters for the rest of this turn, except "Heroic" monsters." effect is an Ignition Effect. (This effect does not target. Discarding 1 "Heroic" monster is a cost to activate this effect.)


 * "When you take damage from an attack or a card effect while this card is in your Graveyard: You can Special Summon this card from the Graveyard in face-up Attack Position." effect is a Trigger Effect that activates from the Graveyard. (This effect can be activated during the Damage Step. It cannot be activated if you take damage when this card itself is destroyed by battle or by card effect.)