If new to the card game, try to read as much as you can
He has double strike, it creates a relatively powerful token, and it gains counters whenever any other creature with greater power dies, including tokens
Getting free spells every turn is good, and once this card is on the battlefield, your opponents are in trouble
If you cast a creature spell this way, it gains haste until you lose control of that creature (or, in rare cases, you lose control of the creature spell while its on the stack)
This attack lets you target an opponents Benched Pokmon for 30 damage, and with a cost of just one Fighting Energy, its both efficient and disruptive
Fire Mane does 40 damage for only one Fire Energy, which is amazing in terms of cost-effectiveness