As the name Hearthflame would suggest, when Ogerpon dons this particular piece of headgear, she takes on a Fire-type skillset, including the Wrathful Hearth attack
Make sure you have enough graveyard recursion, re-shuffle cards like Enhanced Survillance, Feldon's Cane or Finale of Revelation, or anti-mill win conditions like Laboratory Maniac as backup plans for when you surveil a bit too vigorously
Set that target, but banish it during the End Phase of your next turn if it is still on the field
Stack more Psychic energy on Lunatone with Fog Crystal, Energy Switch or Solrock and youve got a surprisingly formidable attacker for a Basic Pokmon
TIL life points don't matter in Yugioh, even though the main way through which you win in it is by making your opponent go down to 0 life points
Theres the Instant Berserkers Fury and just a few other Artifacts that require either spending Mana or dealing combat damage to a player for you to roll that die