QTwo UB abilities I control have executed this turn. I choose option 2 of this follower's UB On Evolve ability and select a Kokkoro on my field, executing its UB Fanfare ability. How many UB abilities will I have just executed?

AYou will have executed 2 UB abilities. Also, if Clear is on your field, its automatic ability would trigger 2 times, once for this follower's UB On Evolve ability, and once for Kokkoro's UB Fanfare ability.

QTwo UB abilities I control have executed this turn. If I choose option 2 of this follower's UB On Evolve ability and select an evolved Kokkoro, will it count as a UB ability being executed?

AYes. While nothing will happen since an evolved Kokkoro has no UB ability, it will still count as this follower's UB ability being executed.

QIf I can't select another follower on my field, does this follower's UB ability still count as executed?

ANo. The ability wasn't successfully played, so it doesn't count as executed.

QTwo UB abilities I control have executed this turn, one of which was Io's. If I choose option 2 of this follower's UB On Evolve ability and select Io, can I execute Io's UB activated ability, even though it states it can only be activated once per turn?

AYes, you can.

QTwo UB abilities I control have executed this turn. If I choose option 2 of this follower's UB On Evolve ability and select an evolved Kokkoro, can I execute Kokkoro's UB Fanfare ability?

ANo. An evolved card does not possess the abilities of its unevolved version.

QTwo UB abilities I control have executed this turn. If I choose option 2 of this follower's UB On Evolve ability and select an engaged Illya on my field, can I execute Illya's activated ability, which requires me to engage it as part of the cost?

AYes. Option 2 of this follower's UB On Evolve ability allows you to execute another PriConne follower's UB ability without paying the cost.

QTwo UB abilities I control have executed this turn. If I choose option 2 of this follower's UB On Evolve ability and select a Kokkoro that has lost its abilities as the result of some effect, can I execute Kokkoro's UB Fanfare ability?

ANo, you can't.

QTwo UB abilities I control have executed this turn. If I choose option 2 of this follower's UB On Evolve ability and select a Labyrista with a Queen's Console equipped that has lost its abilities as the result of some effect, can I execute the UB ability given to Labyrista by Queen's Console?

ANo, you can't.

QTwo UB abilities I control have executed this turn. If I choose option 2 of this follower's UB On Evolve ability and select a Labyrista with a Queen's Console equipped, can I execute the UB ability given to Labyrista by Queen's Console?

AYes, you can.

QTwo UB abilities I control have executed this turn. If I choose option 2 of this follower's UB On Evolve ability and select an evolved Yui, can I select a Kokkoro in my cemetery as a target of Yui's ability?

ANo. In that case, X would equal 0.

QI have 7 max play points and two UB abilities I control have executed this turn. If I choose option 2 of this follower's UB On Evolve ability and select a Muimi with a Precious Momento equipped, do I equip it with a second Precious Momento?

AYes. In that case, Muimi would have two instances of the "Strike - Select up to 2 enemy followers on the field and deal them 3 damage" ability.

QI have 7 max play points and two UB abilities I control have executed this turn. If I choose option 2 of this follower's UB On Evolve ability and select Muimi, do I equip Muimi with a Precious Momento?

AYes, you do.

QTwo UB abilities I control have executed this turn. If I choose option 2 of this follower's UB On Evolve ability to execute Nephi Nela's UB ability without paying its cost, how many times does Nephi Nela's automatic ability trigger?

AIt triggers 1 time. Nephi Nela's automatic ability only triggers when a UB ability of another follower on your field executes.

QTwo UB abilities I control have executed this turn. If I choose option 2 of an evolved Ameth's UB On Evolve ability and select this follower, will this follower's "if UB abilities you control have executed at least 3 other times this turn" condition be fulfilled?

AYes, it will.