Shes sure to make a splash, given we have more common and uncommon gates available in Sultai colors to make Mazes End a viable wincon
These are only temporary answers but they buy you time, and thats often all blue needs
But what matters is its abilities
Pokmon TCG Pocket is a game where you'll want to take advantage of every way to earn items and points that you possibly can, so if for no other reason, you should do the training just for that
Its activated ability to draw a card helps get you up to five or more cards in hand to trigger its lifegain ability, but chances are youll be drawing/gaining life through much quicker means to use those creatures to attack instead
Based around scrying and casting high value instants and sorceries, Elminster's static ability reduces the mana cost of the next instant or sorcery you would cast by the number of cards you looked at the last time you scried