In some different places, I have read that mythic haste is one of the best mythic spells ever, but I just cannot see why.
Mythic haste says:
Affected creatures gain an additional move action each round. The
movement speed increase changes to 50 feet, to a maximum of three
times the creature's normal speed for that movement type.
What can I do with this that makes it so good? I can go (move action) to an enemy, slash (standard action) and move away, with the chance to get an Attack of Opportunity. I do not see why this is so super strong. I cannot make a Full Attack since Full Attack eats up the entire turn.
Is this really one of the best mythic spells, like people say? If so, why is it?