Eternal enchantments
Sure, seven mana is pricey in the non-ramping color of Blue, but your sweep has giving you time
Orcus, Prince of Undeath Okay I will admit, I am a bit bias with anything related to Rakdos but honestly Orcus, Prince of Undeath really is worth every bit of mana (and potentially, your life) you give to it
A three-drop that does neither is simply unacceptable
In this state, when attacking, these creatures receive a substantial 3/3 buff
The term "defending player" in the myriad rules (or any other ability of an attacking creature) refers to the player the creature with myriad was attacking, the controller of the planeswalker it was attacking, or the protector of the battle it was attacking at the time the ability resolves