this would not be able to target a card that has protection from blue
Plague Rats, most obviously, is non-functional in a context of 60 card minimums and 4 per card maximums, but is hilarious and brutal in a 40 card minimum environment where an opponent may have a dozen or so Rats
You may play lands from your hand
Technomancer is good, getting you a bigger graveyard and recurring a few things
I mentioned the pseudo-creature enchantment nature of Bloodrage Brawlers natural power and toughness, and this thought largely came out of cards like Giant Strength or Unholy Strength from previous moments in Magic where these kinds of cards played out similarly to hasty creatures
While I appreciate that these cards exist and are part of Legacy (and to a lesser extent, Modern), they don't have a place in Standard