War Dragons

You summon a wave of dragons with stats that I don't care about writing right now. They're big and terrifying. Their breath weapon is determined by rolling whatever number die is required to get all of them. The number you summon is equal to the spell level at which you cast it. You can multiply the number of dragons you summon by using multiple actions. The dragons are friendly towards you and neutral towards your allies. They will do whatever you order them to and prioritize your life over their own. The spell lasts until you dispell it and the dragons last until they are killed.

At Higher Levels. More dragons and they're stronger. You're essentially unstoppable.