Improved Knockdown critical trip damage on critical strike question

[Kyle_TheBuilder]

So, a quick question:

Imp. Knockdown is single Strike and you add effect of critical trip to that Strike. Further more feats says "If you used a two-handed melee weapon for the Strike, you can use the weapon's damage die size instead of the regular die size for the damage from a critical Trip"

So for example you use Greataxe, the critical trip damage bonus to your Strike is D12.

But what if you critical hit on Strike? Since you apply "critical success effect of a Trip" to that Strike: does the extra damage from critical trip that now rides on Strike also doubles on crit since now it's part of that single Strike? So would it be on Critical Strike Improved Knockdown from Greataxe an extra 2x(d12) then from critical trip effect?

[breithauptclan]

You don't double damage from a crit for damage that only happens on a crit. Since the trip damage only happens on a crit, it is not doubled.

[Baarogue]

What breith said, and also, the "double damage on a crit" rule is only on Strikes and Basic Saving Throws. Even though you perform a Strike as part of Imp. Knockdown, the Trip is its own thing

Now a fun bonus question for everyone else that just occurred to me. If you crit strike on an Imp. Knockdown with a Greatpick, does the Trip get the fatal size damage die? I'm undecided. On the one hand >the Trip is its own thing, but on the other hand that is the weapon's damage die at the time and I don't feel it's unbalanced since Greataxes are already d12 all the time

[ReyalsKanras]

It feels like a two-handed Fatal weapon would get one damage die at the size specified by Fatal. If you roll a crit on the strike that does replace the weapon's damage die at the time. I do not feel as though it would confer the second die Fatal usually grants but we might agree on that detail. I also agree the benefit feels in line with what other options can offer. Certainly not game breaking.

[Kyle_TheBuilder]

Thanks guys for confirming!