Guard Gomazoa

The damage prevention clause does the real work here. A 1/3 body already soaks early aggression, but the prevention shield means it never falls in combat: not to a pumped attacker, not to two creatures ganging up, since there is no combat damage left to register. The blocker holds no matter how hard the swing comes. Trample is the one leak the design cannot patch: an attacker with trample only needs to assign lethal to the blocker (three points) before sending the rest at the defending player, and prevention does not alter how that lethal assignment is calculated, so a big enough trampler still bleeds over the top. Against everything else, flying extends the guarantee upward, answering air and ground with the same indifference. The trade is total passivity: it cannot attack, cannot trade up, cannot pressure anything, and a patient opponent simply routes around it or removes it with a noncombat effect. What it sells is time, repeatable and nearly absolute, against any plan that runs through the red zone. That makes it a control-shell role-player rather than a tempo piece, a creature built to make combat math irrelevant for the attacker on one axis while the defending side assembles a different route to victory.