Retaliation Skills Remaining Usable Not working properly

I have ascendancy for 50% chance to remain useable
i have the anoint (no forgiveness) for 20% to remain useable
i have the runegraft for 20% chance for cooldowns to not consume a charge.

At min this should be 70% chance followed by another 20% chance roll
i would hope it's 90%

but this does not come close to feeling like even a 70% chance to remain useable.

Please someone take a look at how this works i feel like this isn't stacking properly or something.

This game doesn't give you many sockets and this is super clunky trying to use this as a main skill.

i spent every currency i farmed this league getting the gear and anoints to make a "retaliation" build and it feels so bad to play right now because of this i feel very demotivated now :(.