This way, Eerie Interlude provides value regardless if your opponent has a wrath or removal spell
It proved to be a pretty popular staple of Cubes at the time and had a respectable place in Commander, particularly following Innistrad 's heavy emphasis on wolves
This can only be done once per game, and is usually helpful if you draw a hand without many inkwell icons (which are used to play cards and use abilities) or containing too many expensive cards for the start of the game
Meanwhile, for UW Flash, you have a bunch of value creatures, and while banning any one of Archangel Avacyn, Spell Queller, Selfless Spirit, or Gideon, Ally of Zendikar would hurt the deck, none of those cards really stick out as being too good in a vacuumthey are just very strong when combined together
Hallowed Moonlight foils are carrying a 4x modifier at present on the assumption of Modern and/or Legacy play
Add to that instant-speed card filtering for no mana and you've got a real winner