Need some opinions on this tank/fighter passive - Revolves around counter-attacking
One of my Champion Concepts uses the following as her passive:
P - Curse of Retribution
Every time an enemy lands a basic attack on Nephree, it receives a stack of Retribution for 6 seconds (max. 4 stacks). If Nephree deals physical damage to an enemy with 4 stacks, the stacks are consumed and Nephree deals 35+(5*level)(+60% of total armor) physical damage to it.
The idea of it is she is an armor-scaling tank who has taunts, but unlike Rammus has to actually attack someone to trigger her "counterattack damage" once her target has maximum stacks. Also unlike Rammus, she doesn't have an armor steroid, so she can only get bonus armor from items, runes, and masteries. She compensates for those things by having much better offense than Rammus or Malphite, keeping her a potent threat in fights.
However, that all is besides the point. The point I'm really wanting to ask is whether or not a passive like this one could be reasonable, or if it's instantly toxic. People will probably see this and think "Punished for attacking?!", but my hope is that such a mechanic is not inherently toxic gameplay.
and
are rewarded for autoattacking their target as much as they can, regardless of the bonuses attached to their basic attacks, for example.
both have excellent mobility, for example, so you could make another tradeoff by having Nephree be less mobile, or you could give her a significant weakness Rammus and Malphite don't have that would justify her greater fighting power.