Magmatic Force

Eight mana buys a 7/7 that does not need to swing to dominate a game: at the start of every upkeep, yours and everyone else's, it pings three damage at a target of your choosing. The clock is the whole pitch. Where most red fatties threaten a fixed wad of combat damage, this one accrues a tax on the table, picking off mana dorks and utility creatures, chipping planeswalkers down, or pointing the same three at one face until the math runs out. The cadence is what turns it from a slow burn into a board-warper: the trigger fires on each upkeep around the table, so in a four-player game a single copy throws twelve damage in a single rotation, all of it aimed by its controller, before the turn comes back. That is the line worth correcting in most people's mental model: there is no shared liability here. You control the ability and you choose every target, including on opponents' turns, which makes the card a repeatable removal engine that happens to wear a 7/7 body. The size is the insurance: large enough to demand a real removal spell rather than a chump block, and to keep the trigger ticking long enough to matter. It belongs to the lineage of big-mana threats whose passive output asks the table to answer them now, before the upkeep counter grinds someone out. Slow and telegraphed, but three guaranteed damage a turn compounds faster than the cost suggests.