Dark Garnex the Cubic Beast (Ultra Rare)

Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by sending 1 "Cubic" monster you control to the Graveyard. If Summoned this way, this card gains 1000 ATK. When this card destroys a monster by battle: You can target up to 2 "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 "Blade Garoodia the Cubic Beast" from your Deck to your hand.