These Pokemon are able to take a lot of damage while whittling down their opponent's HP, allowing players to more easily set up their more fragile cards on the Bench and slowing the rate at which their opponent takes Prize Cards
In order for the effect to be maintained, it would be necessary for it to end explicitly in the End Step, just like Final Fortune, which despite talking about the end of the turn had an errata in its text adapting it to the End Step, allowing you to use the card along with Obeka, Brute Chronologist to gain extra turns before losing the game
Its a nice elf to fit into a +1/+1 counters and proliferate strategy, but unfortunately, the nontoken clause prevents it from being busted in planeswalker or artifact strategies
By comparison, you can generate a bunch of creatures quite cheaply when you focus on it, and those creatures can be tapped again every single turn including the turn they enter play, or in the opponents end step after theyve already been used to block