Mizzium Skin

Protection that scales is the trick here. A single mana buys one creature hexproof through end of turn, the familiar shape of a cheap shield against targeted removal. The overload mode is what reframes the card: for one more mana, "target" becomes "each," and your whole board gains hexproof at instant speed. The strategic axis it shifts is not how many creatures one spell saves but how many spells one cast can strand. A lone hexproof creature already answers a single spot-removal spell on the stack; what overload buys is coverage against an opponent who is trying to dismantle a board piece by piece across a turn, or who has stacked several targeted triggers, or who points a multi-target spell at the whole team. Against those, blanketing every creature at once is the difference between answering one threat and answering all of them. It does nothing against edicts or sweepers that hit everything, because those never target the creatures to begin with; the window it exploits is specifically the moment an opponent commits a spell that needs a legal target, which the hexproof then leaves with nowhere to resolve. The +0/+1 is almost incidental, a sliver of toughness that occasionally tips combat math; the hexproof and the timing carry the card. This is overload working as the mechanic intends: a single-target combat trick that fans out across the whole team when the situation calls for the wider answer.