Since Buyback puts the spell back into its owner's hand, I hypothesize if you pay the Buyback cost on a spell you heisted using Arena 's mechanics, the spell would go back into your opponent's hand
Read the previous Random Mechanic Monday article on Typecycling here
If youve already gotten the value that you wanted, it usually doesnt matter if the creature sticks around for long
The ability isnt bad, and its definitely very lore-friendly considering Galadriels internal conflict regarding the Fellowship, but I think it can be a little unfocused
Its hard to attack through all their tokens, but Cryptolith Rite decks tend to be good at winning without needing to attack, and G/W Tokens isnt good at killing them or disrupting their engine, but its difficult to design a Cryptolith Rite deck thats actually good at winning a game against an opponent who can regularly kill all of their creatures with Archangel Avacyn, Tragic Arrogance, and Planar Outburst