You keep energy counters until you pay them or something causes you to lose the counters
Charizard EX Special Illustration Rare (Obsidian Flames) brought the SIR treatment to Charizard in one of the earlier Scarlet and Violet sets, establishing the pattern of premium Charizard SIRs that would become a defining feature of the generation
Once a Pokemon has the Handheld Fan Pokemon Tool attached to it and is in the Active Spot, any damage (including a Knock Out) towards it means you can move an Energy card off of the Attacking Pokemon to one of the Benched Pokemon
And secondly, each Malebranche has a different effect that triggers when they hit the graveyard which will usually further your plays, or just generally give you a nice boost
[11] [12] This also extends when said cards are already active on the field, such as when Kaiba Summoned "Obelisk" while Aigami controls "Cubic Mandala"
It was heavily used in Extended and was an automatic hit at every casual table format in which it was legal