I've been testing the variant with mega alakazam and to me it works well, yes it does take a way the count of certain cards (head ringer , burst balloon,etc.) but It def does help when used right to get quicker k.os, the con I can agree with is not having item lock first turn or second because it's active but I run 2 float stone and mystery energy so shouldn't be a problem switching out , I def need to continue to test as I haven't played night March or greninja and few other mets decks and if worst a come to worst a you can always just switch back to a straight trevenant deck