To quote the ability from the wiki: “Power Cost: 8 
AP. Psylocke gains momentum, fluidly chaining attacks together. Deals 59 damage and creates a strength 12 Red Strike tile whenever fewer than 3 exist. Costs 1 less for each Red Strike tile (min cost 5).”
The “bug” appears when you get this ability as a teamup - the cost (now paid in 
) is not reduced by having 
in play. It seems the built-in cost-reduction ability only reduces the cost if you pay
to activate it.
I’m unsure if this is intended or not, but it seemed like something to report, so here it is!
