I know match winners are usually either banned or flat-out illegal to use in official duels, but Im thinking the hoops one would have to use to win a match with this card AND the built-in time limit would actually balance the card out for it to avert that fate, especially since all the Forbidden One pieces needed to get the card out have been limited since forever anyway
High draw power
(Its not actually infinite infinite because if you use Rals ultimate and fail all five flips you cant keep untap the Veil, but at least you get infinite Planeswalker loyalty.) It will be popular in some EDH decks and in casual circles, but I have real trouble imagining this being good enough in any other format
Brawl Legal Vintage Restrict
The deck then comes over the top with powerful midgame threat (turtles) with strong abilities including Ambling Stormshell (ward, draw), Bedrock Tortoise (hexproof, assigns damage by toughness), Fecund Greenshell (pump, land fetch/draw), The Pride of Hull Clade (pump, assigns damage by toughness)