Doomtrain is a summon that first appeared in Final Fantasy VIII as a Guardian Force. It is a Poison-elemental optional summon who inflicts a myriad of status ailments on its opponents. It doesn't learn any stats junctions naturally, but learns comprehensive elemental and status attack and defense junctions, including the useful x4 variations. It is the only GF to learn Auto-Shell naturally and the first GF on the roster to learn +40% versions of SumMag+ and GFHP+ abilities. Its unique abilities let the player remodel weapons from the menu and create "forbidden medicine", such as Elixirs, Megalixirs, Hero-Trials and stat-boosting items.