(It can't be blocked, targeted, or dealt damage by anything that's white, blue, black, red, or green.) Enchantment - Aura Color tag templates(None) Sphere of Safety Creatures can't attack you or planeswalkers you control unless their controller pays for each of those creatures, where X is the number of enchantments you control
While it might seem like a vote of confidence for aftermath that it is based on one of the most playable mechanics of all time, even discounting the actual text printed on the card (which we'll talk about in a few minutes), the very design of aftermath makes it less powerful than flashback
Loxi: As a lover of the classic Lich effect, I adore this card
Nadu is easier to stop and win around in cEDH due to the speed of the games and the sheer amount of interaction, but has still been making waves at cEDH tournaments since it was printed, with 60 Top 16 finishes using data provided to EDH Top 16
Remember that a creature is still attacking during the end of combat step, so sacrificing it to Goblin Bombardment or Altar of Dementia will still trigger Brazen Cannonade
My favorite is in an Ashling the Pilgrim deck, where you can combine Ashling with a Basilisk Collar and the Scythe to wipe the entire board each turn, returning every creature destroyed to the battlefield under your control