Hitting Hammer (Mega Rising B1-215)

Flip 2 coins. If both of them are heads, discard a random Energy from your opponent's Active Pokémon.

The chance this card fills each slot in a pack. Estimated packs is the average number of packs you'd open to pull one. It counts every slot in the row and how often that pack type appears, and Overall adds up every way to pull it.

Mega Gyarados

Pack type	Slot	Pull rate	Estimated packs
Regular pack 94.711% of packs	Card 4	2.727%	39
	Card 5	1.818%	58
Pack with a bonus card 5.238% of packs	Card 4	2.727%	700
	Card 5	1.818%	1,050
Overall			22