Even casting it for its prototype cost is fine getting a three-mana 3/3 with those abilities helps prevent aggressive decks from getting out of hand
If you do, put all Energy attached to that Pokmon back into your hand
If you discarded a nonland card, put a +1/+1 counter on that creature.) If you choose a target Equipment for the first ability, and either target is illegal as that ability tries to resolve, the Equipment won't move
Now, if the opponent blocks Lost Leonin with a 3/3 creature, the blocker receives two -1/-1 counters and it stats are reduced to 1/1, and Lost Leonin dies
Lands Next up, well look at lands
I hope its going to make the card get played more, and Im looking forward to the next printing of this card so we can get a non-40K artstyle card reprint in the near future