I've said this with every Pokmon TCG product I've reviewed this year that has included sleeves, and my thought remains the same: the matte sleeves are good for players, as the cards won't slide when you stack them, but they, unfortunately, have a prominent texture on the 'clear' part of the card that fogs and obscures the beautiful art
Heliod, Sun-Crowned Heliod, Sun-Crowned is the perfect addition to lifegain decks
There is a clear order to the construction of this deck, and while thats occasionally hindered by card draw, you can immediately see the logic in your hand, and understand which cards should be played first, to take advantage of any possible counter placement and proliferate mechanics
Given its history and rarity, it will likely retain this spot for quite some time
Once again, here is the quick and easy option I recommended above: I hope that this one players journey through it helped you come to your own decision