Adrena-Brain allows you to move up to 3 Damage Counters from one of your Pokemon to one of your opponents Pokemon, providing Munkidori has Psychic Energy attached
Only pumping legendary creatures is too narrow and giving haste to everything is not something Id be willing to spend a whole card on
After: This Leader cannot attack
Despite having almost zero working knowledge of The Lord of the Rings, Im already on board for Magic: The Gatherings big crossover set, Tales of Middle-earth
With some careful deck building (mostly playing some big card-draw spells you can cycle into with Unpredictable Cyclone to make sure you always have some cycling cards in hand), you should be able to mostly play your entire deck in a single turn by cycling, casting stuff (including card-draw spells) for free with Unpredictable Cyclone, drawing into more cycling cards, and cycling them to trigger Unpredictable Cyclone against and again until you've essentially cast your entire deck
These are the eight best Ace Spec cards in the Pokemon TCG