So rounding off our Top 5 is Leafeon-GX, which yes that is yet another Eeveelution GX on the list. I think the only ones we’re missing at this point are…the original trio of Eeveelutions. Weird, you’d think they’d hit those guys first.
 
Leafeon-GX is a Stage 1 Grass-Type, 200 HP, with a Fire Weakness, no Resistance, and a Retreat Cost of 2. He comes with the handy Ability Breath of the Leaves, which heals 50 damage off of any 1 Pokemon with Energy attached to it once a turn while Leafeon-GX is Active. It’s a lot of circumstance, but a free 50 heal on any Pokemon – including himself – can make up for a lot even in today’s game. It can make 2HKOs into 3HKOs easy enough, even against other copies of himself, considering the only attack is Solar Beam, a 3-for-110 vanilla strike. It’s actually a pretty solid damage output for the cost, and it gives Leafeon-GX the ability to 2HKO most things before a Choice Band boost, which can let it 2HKO anything else.
 
The GX Attack is Grand Bloom GX, which in a weird twist of fate actually costs less than any of Leafeon-GX’s attacks. You only need 1 Grass Energy, and then you get to Evolve any of your Benched Basic Pokemon straight from the deck, which can include Stage 1 GX. Eeveelution decks aside, this move is clearly designed to be used in the early game, given its cheap cost and set-up potential, which means you’d want to combine it with Eevee (SM) to take advantage of Energy Evolution to get Leafeon-GX out quick, and then of course you’ll want several other evolving Basics on your Bench to get the most mileage out of this move. Ideally you’re evolving at least 2 Basics this way, which will either make it easier to bring out Pokemon like Decidueye-GX (evolving Rowlett to Dartrix) that can support your assault or pulling out the big guns of your deck like Golisopod-GX (evolving from Wimpod).