When this card is destroyed by battle and sent to the Graveyard, inflict 500 damage to your opponent. You can remove from play this card in your Graveyard, along with 1 face-up FIRE monster you control, to add 1 "Flamvell Dragnov" from your Deck to your hand.
Banishes itself from Graveyard for cost / Banishes from your field for cost
Damages your opponent
youre all missing the point..., you get bb dragon destroyer in the field, then you summon this guy in attack position, use mystic box to destroy your opponent monster and give this to him, dragnov will be changed to defense position and BB will get 1000 atk boost so he will get 3800, he does piecing damage so you'll do 3600 battle damage plus 500 from dragnov effect, in total you'll do 4100 and probably win. A very easy 3 cards otk