Gilded Sentinel

Three power and three toughness with no text, castable off four generic mana in any deck: this is curve-filler in its most honest form, a body sized to the exact point where a vanilla creature stops embarrassing itself. The design job is structural, not strategic. A colorless artifact Golem asks nothing of the manabase and rewards nothing in particular; it trades, it blocks, it attacks into open ground, and that is the sum of what it does. The value is availability. Any deck that can produce four generic mana can run it, which is every deck, and that universality is precisely why the stat line has to stay this modest: a text-free colorless body that goes anywhere cannot afford to be any bigger than the curve point it occupies. The artifact type carries a sliver of incidental relevance for anything counting artifacts, but the card is not built around that upside; it is built around never being unavailable. This is fixing of a second kind: not mana fixing, but curve fixing, a dependable creature for a deck that came up one body short and needs something, anything, that resolves.