It had been some time since the attack of Lord Tirek and Princess Twilight Sparkle's brief absence from her world, but peace once again reigns for Equestria. That is, until a game has sprung out of nowhere that requires the participation of worthy contestants willing to duke it out with the incentive of earning one wish. The best part? It involves summoning.

Plenty of summoning.

Inspired by Fate/Zero
Further inspired by Humans Assemble! by Mistershield