Talk:Master Yi/@comment-24659969-20180409100311/@comment-29964258-20180409121841

the 10% Cooldown refund is Presence of the Mind in precision... you'd probably want ultimate hat over the inspiration 5% max CDR, so it would be 85*(1-49%) = 43.35s after ultimate hat and CDR * .5 = 21.67s after a presence of the mind ace with a maximum duration of 42 seconds. It will come off cooldown halfway through the ability if you kill everyone on their team.