Vulcan Dragni the Cubic King

[ Fairy / Effect ] Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by sending 2 "Cubic" monsters you control to the Graveyard. If Summoned this way, this card gains 1600 ATK. If this card is Special Summoned from the hand: Inflict 800 damage to your opponent. At the end of the Damage Step, if this card battled: You can target up to 3 "Vijam the Cubic Seed" in your Graveyard; send this card to the Graveyard, and if you do, Special Summon them, then you can add 1 "Indiora Doom Volt the Cubic Emperor" from your Deck to your hand. ATK/ 0 DEF/ 0