OK, so someone with Mythic Strength, Blood Drinker, Tentacles and No Matter the Power would not only grapple at Skill+5 (so probably at least legendary), but they'd also negate enemy bonuses vs their grapples, satisfy catches automatically and deal 5 stress per successful grapple. I think that's an automatic takeout 95% of the time.
Negating numerical bonuses while still getting your own numerical bonuses is a BAD idea.