Cards like Questing Beast and Rankle, Master of Pranks are powerful enough to carry a game by themselves, which means the deck is not as reliant on synergy as other versions
Creatures that enter the battlefield attacking were never declared as attackers, so they won't count toward melee's effect
Let go with your left thumb and let the cards fall into your hand
For example Lich and Mirror Universe is not really immediate, as you have to wait until your next upkeep until you are able to throw your opponent into the alternative universe, but Id argue it is a combo
Your assassin typal can use Virtus, but I like the idea of putting it in a Kamiz, Obscura Oculus deck
Shes another fairly no-nonsense Angel card aside from one thing: shes double-faced