Origins: XE-13 Phobos

The origin replaces the hunger system with a fuel system. Fuel canisters each grant 100 fuel, and the player can hold up to 10 canisters, for 1000 fuel in total. Natural regeneration from eating is disabled, and fuel refills almost at once after an ability is used, since most abilities drain it. A secondary-click ability converts canisters into health, one heart per canister consumed, which is the only way the player regenerates health.

The origin is inspired by the Exo Mechs of a boss-battle mod for Terraria. Its primary click draws an arsenal of four weapons that are cycled with right click and used with left click. The weapons deal extreme damage and consume fuel on use. Sneaking in midair grants up to two extra jumps, and fall damage is ignored up to 10 blocks, so the mech lands with ease. Fuel canisters melt in hot temperatures and lose fuel passively, and fire deals 50% more damage, partly offset by fire resistance. The origin cannot make critical hits, and its attack speed is 30% slower. Phobos requires Appli, Extra Origins, Origins, Origins: Math, Pehkui and eggolib.