The only problem was that by this point, it was clear that Bitterblossom wasn't actually that good in Modern, meaning its usefulness outside of Commander and Cube was low
You only gain control of the creature if it actually regenerates
While a 1/1 might not be much to write home about, as soon as you get ten permanents in play and you get the City's Blessing, all your Saproling creatures get +2/+2 and suddenly become 3/3 threats
He simply punishes greedy setups , and thats exactly why hes the best planeswalkers in MTG whenever artifact control is part of the conversation
But the rare card also has a single ability called 10,000 Needles, which is excessive in a way that only Final Fantasy abilities can be excessive: Whenever this creature attacks, it gets +9999/+0 until end of turn. Do you need to deal 10,000 damage to another creature in a game of Magic ever