You can cast even the most powerful spells without using material components.
Prerequisites
Benefit
You can cast any spell with a material component costing 10 gp per tier or less without providing that component. If you expend one use of mythic power while casting a spell that requires a material component costing 50 gp per tier or less, you can cast it without providing that component. Expending two uses of mythic power instead allows you to cast a spell that requires a material component costing 100 gp per tier or less without providing that component.