Vainglory new hero “PHINN（フィン）”!

Phinn is an unstoppable tank who brings the fight to him. He pairs incredibly well with other heroes who don’t back down from battle. Phinn is strongest with defense and utility items, and he’s able to absorb immense amounts of punishment, protecting teammates while they dish out damage.
THE AUTUMN SEASON 2015 LAUNCH WILL INCLUDE A NEW HERO

InfernallyClay said: ↑
Phinn’s Quibble is kinda nuts. 525 damage with a 0.8 second stun and a five second cooldown is kinda crazy.

Given the unholy trilogy of Aftershock, Frostburn and Eve of Harvest, that’s 825 damage and 0.8 second stun with 20% lifesteal, 40% slow, 15% of max health as bonus damage on his next basic attack and a 3.75 second cooldown.

Thanks to Polite Company he’s also obviously going to be amazing with just the Frostburn and Atlas Pauldron.
Phinn and Petal abilities description and stats. | Page 2 | Vainglory Community Forums

“Catherine gains 1 armor & shield every time she stuns or silences an enemy hero with her abilities.”

So anyways, Catherine needs to stun in order for her heroic abilities to work but stuns do not work on Phinn. This can be problematic because Catherine will definitely degraded with the release of Phinn due to her not being capable of gaining stacks. In another words, with the release of Phinn, Catherine will not be completely worth playing anymore due to her basically losing her perks.
Concerns of release of Phinn | Vainglory Community Forums