Driangle, Dragon of the Dark Deep

If you have 3 or more Level 10 monsters on your field, GY, and/or banishment: You can Special Summon this card from your hand. If this card is Special Summoned: You can send the top card of your Deck to the GY; this card gains 500 ATK, then, if the sent card was a monster, inflict 1000 damage to your opponent. Otherwise, you can send the top card of your Deck to the GY. You can only use each effect of "Dark Sea Serpent - Dryagle" once per turn.