It's relegated only to elf decks, but it's an excellent addition there
Legality depends on the tournament format -- Helpful Hunter can be legal in some formats and banned or restricted in others
Thankfully, if you want one of these to add to a deck, you can buy the V.1 card for pennies
Whether youre bringing back a Mindslaver to lock a troublesome opponent out of the game, or reclaiming one of your key Auras in a Voltron build, its almost harder to find a deck where Hanna doesnt work well than one where she does.
For the MTG Finance community, the question of the day is which decks will rise to dominance today in a field that has seemed close to being solved fairly early on
Chakram Retriever itself can definitely set up some fun synergies and combos by untapping creatures, but theres far better ways to do that without paying 5 mana