User blog comment:JmLyan/Sairei, the Dimensional Mistress/@comment-5493192-20140424173717/@comment-7709681-20140425141643

@JmLyan: About the damage: Earlly game is most probably low, late game, with the carriers of each team, too high (Knowing the additional effects that the ability provides is too much damage, again, late game).

Also, you say that "(...) That said, the enemy team also knows the outcome of those 5 seconds which means they can adapt as well (...)", how they are able to adapt to a fought teamfight if they don't know when the ult. is activated? They know how the fight happened, but not when it will repeat itself; and that's a huge advantage.