The value of Charizard Pokemon cards varies significantly based on several factors including card condition, rarity, edition (1st Edition vs Unlimited), and whether the card has been professionally graded by PSA or BGS
The front fetches one for you, from various zones, and the back is an enchantment that copies any instant or sorcery you cast
At the big picture level, all Ill say is that this surplus of efficient removal has made it very very hard to dominate early game with raw tempo, as your opponent can likely respond and pick apart whatever cheap creature rushdown you had cooking
Counters on the team each combat is a nice way to spend that mana too
Luckily, you wont run the risk of locking yourself out of your graveyard, because you can sacrifice Festival of Embers at any time for two mana
This is especially important if you're building your own Pokmon TCG set card list, where accuracy and authenticity matter