Originally Posted by MiThiKaL
I think charged attack does also send the enemy flying if they are not killed. Not positive on that but I think it has happened to me before. And as for Ambush attack, it would be helpful when enemies are running from me and I hit them with dash attack in the back. I just didn't know how much it raises the damage and was curious if anyone knew. I would imagine that it would be more damage than attack up lvl 3, otherwise it would be useless.
I don't know for sure, I assumed it to be like the slayer buffs, giving x1.4 extra damage if they were facing the opposite direction. x1.4 = essentially 140% damage so 400 damage points extra for every 1000 points of attack, however if they're not running away you're screwed. Personally think AP Damage Attack is more useful than Ambush Attack.
I forgot to mention in my previous post mage wind trap is also affected by Smash Power Up. I've survived a fully charged "charged attack" before (albeit barely) and it did not send me flying in any direction.