Ovinomancer breaks this rule, but at a price: you have to stunt your mana development three turns each time it is cast
If it prevents damage, Divine Deflection (not the original source) deals damage to the targeted permanent or player as part of that prevention effect
It makes your army of goblins, elves, or zombies snowball quickly and is a must-have for tribal strategies in Commander
Although, at time of writing, we have only seen the box art, so this could be entirely misleading
You can crew to swing and then crew again to block with a 4/4 flyer for removing another loyalty counter
Speaking of fixing your mana, Temple of Triumph, Temple of Abandon, and Temple of Plenty are great for that, and theyre very cheap