Drytron Meteonis Draconids

[ Machine / Ritual / Effect ] You can Ritual Summon this card with "Meteonis Drytron". Your opponent cannot target this card with monster effects. If the total Levels of monsters used for its Ritual Summon are 2 or less, this card can attack all Special Summoned monsters your opponent controls once each. During your opponent's turn (Quick Effect): You can banish monsters from your GY whose combined ATK equals exactly 2000 or 4000, then target 1 face-up card your opponent controls for every 2000 ATK of the total; send that card(s) to the GY. You can only use this effect of "Drytron Meteonis Draconids" once per turn. ATK/ 4000 DEF/ 4000