Yes you can, if its done well. i just think its a very fine line, its either very strong or too weak, or if done right, just right.
Piercing shot is a talent i like, it modifies the ult and gives cdr.
Other things i think are examples of where damage reduction is either too strong, or on the border of it and removing alot of choice.
- burnout, basically straight up better then volans quickening
- flaglants zeal and feel nothing
- unending hunt
- waystalker cdr talents
- merc ready for action
and probably forgot some, but those talents are removing alot of choice, unless there are straight up better options for them. On waystalker there is nothing that can make me choose other talents over cdr unless i’m playing piercing shot (which gives cdr on hs). burnout is basically 2 big impact ults, kaboom would have to be changed for me to switch to it. flaglants zeal and feel nothing, both different playstyles, both very very strong and making you able to ult constantly. unending hunt, 50% cdr everytime, basically no activation mechanic, which gives stagger and crit to party. fervency can compete with it, but thats because it literally oneshots elites by light attacking, still close though. Merc, dmg reduction is strong, and especially because merc allows to get his ult up quickly its a very good contender of ready for action, but i would argue ready for action isn’t far behind if not better in certain situations. 30% dmg red just strong af.
These are cases where i don’t think its implemented well. If it modifies ult, has a certain activation mechanic it can work. On the other hand, when merc’s ready for action had its temp hp removed, it was trash. this is what i mean with adding cdr is a fine line. its either very strong and hard to add other options, or will never be used. Just difficult to find a bonus that would make it worth to talent into the ‘non cdr’ talent.
Like zealot: is it worth giving up movement ult, tankyness and/or constant attack speed uptime, for 20%? power increase for 5 seconds? i’m not sure, maybe in very specific scenario’s.
So i’m not saying its bad to add cdr to an ult talent. i’m just a bit worried that it will overshadow other choices or be an underpicked talent. I think there can be made synergies with non ult talents aswell which can make gameplay more dynamic, or just synergise with a careers passive.
edit: an example of this is happening right now in this thread: double shotted, remove cdr or keep it? What makes it too strong, the damage or the stagger it does? if we remove cdr, it will be overshadowed probably, if we keep it its hard to balance or find other options. Reducing might be a solution, but by how much?