Part of the Sixth Edition rules change was to strip out rules that weren't carrying their weight, and the tapped-blockers rule had always been a bit wonky
Brawn You'll regularly see Brawn at Commander tables
Its often better to recover wholesale from a boardwipe or sustained removal by taking part of a turn off to grab a fistful of cards than to grab one piece of the puzzle and hope to recur that creature again
The player has Life Cards, which are similar to the Prize Cards in the Pokmon TCG , as they are depleted whenever the Leader takes damage, prompting them to be added to the player's hand, and losing them results in losing the game
That means playing around countermagic, including more tutors, and even a few of the game's most efficient cards
I feel like ten years ago this would have said Creature Tokens, and wed have had an expensive Izzet one for non-creature tokens, so that goes some way to framing how powerful this effect is