One shot i wrote in one shot. Shirou in terraria world mixed with calamity. AU

In many types of Holy Grail Wars there are what could've been scenario's. Be it be a different servant, or summoning a new one completely. This is a scenario about the latter, and is a what if Rin summoned the Terrarian of Terraria as Servant Caster. [One-shot]

In the face of Calamity, the world of Terraria calls upon an old ally to summon the heroes and legends of two worlds to fend off a great tyrant. New classes, new rules, and one cynical pessimisstic protagonist. Welcome to the Jungle, kids. Formly titled "Fate Calamity"