Cannot be Normal Summoned or Set. Must be Special Summoned (from your hand) by Tributing 3 monsters you control, and cannot be Special Summoned by other ways. Negate the effects of all face-up monsters your opponent controls. Once per turn: You can target 1 monster your opponent controls; equip that target to this card, and this card gains ATK equal to half the ATK of that equipped monster (you can only equip 1 monster at a time to this card with this effect).
Cards that can give you multiple monsters or tokens can quickly let you summon Plasma in a turn. Cosmic Compass is can be a good and quick turn around card even when you have no monsters on the field since you can normal summon into special summon.
Tributes for cost
Treats monsters as Equip Cards / Negates the effects of Effect Monsters
But not as hard as Water Dragon. I’m serious here. This guy only requires that you have any 3 monsters out on the field, but Water Dragon requires all 3 spots to be used up with exactly 2 hydrogedons and an oxygedon and have the necessary spell card to summon it while you can end up drawing Water Dragon as a dud that gets in the way of summoning itself.
I keep wondering.. If both players control this card, would all monster on each side of the field lose their effect???? Im assuming the first one who summon this card take the advantage. But idk for sure :/