Depthshaker Titan

A payoff for a board you already have rather than one you build over time. The enter trigger animates any number of your noncreature artifacts into 3/3s, then sacrifices them at the beginning of the next end step; a separate static ability, always on for as long as this titan is around, hands every artifact creature you control melee, trample, and haste. Those two halves are the same idea approached from opposite ends. The temporary animation turns your Sol Rings and mana rocks into a one-turn attack squad, and the static's melee scales that alpha strike by the number of opponents you actually swing into. In a duel the melee grant is a rounding error; against a full table, a wide artifact board attacking three foes at once gives each melee creature a +3/+3 boost until end of turn, which is the whole reason the body is priced this steeply. The sacrifice clause is the tax that keeps the swing from snowballing: your rocks become attackers for exactly one combat, then die, so the play pattern is a single decisive turn rather than a persistent army. Haste means the freshly animated artifacts can attack the moment they turn on; trample means chump blockers do not spare any one opponent from the melee-inflated damage. Read as a design object, it is a haymaker built for players who have hoarded artifacts that were never meant to attack, cashing all of them in at once for one lethal, multiplayer-only combat step.