Tarrasque apocolypse

You touch the ground with your hand and scream at the top of your lungs, "TARRASQUE APOCOLYPSE NOW!" and a hoard of 100 tarrasques appear behind your enemies and absolutely tear them to shreds. the fun thing is that the tarrasques ac is 50 and once they kill all the enemies you must roll a d20. anywhere between 1-10 means that all 100 tarrasques will go mental and start an apocolypse x100. if this happens roll a d20 and if you roll higher than 9 you are instantly teleported away from the start of the end of the world but if not then good luck. at higher levels instead of 100 tarrasques the spell summons 1000000