inb4 Power 9. lol, I'll try to not use cards that are very expensive. but I have come to realize that Dryad Militant is pretty stupid in aggro decks. A splashable 1 drop 2/1 that exiles stuff. Thank you I'll take 2 sets of the promo ones.
Burning-Tree Emissary was completely broken in my Naya Blitz deck.
Legion Loyalist is pretty sweet too, it won me a few games.
Skullcrack is a great SB against Esper Control.
I aso think that if they kew what this block (Theros) was going to be about a year or so ago, they should've put Etheral Armor at uncommon. I ran it in my Selesnya Aggro-chants. and yeah broken as ****. ok I think I covered all of the un uncommons from RTR, Kamotz turn lol
Those are all situationally good...except Burning-Tree Emissary, which is good in just about anything worth running her in (she takes some careful deck-crafting, but yeah). I disagree with Skullcrack. I think it's not quite as good against Esper as just going all-out and killing them before they can manage to Sphinx's Rev. Or making it that you're still so far ahead that reving doesn't even matter anymore.
The thing with Ethereal Armor and its rarity was how well it played in RTR Limited. That's what denotes the rarity of a card. In RTR, the Enchantment sub-theme was...miniscule. A couple decent enchantments, and if you were to put Ethereal Armor at uncommon, it just wouldn't appear enough times to make any sort of difference.
Are we talking current OP cards in Standard? Because otherwise lemme just toss out JtMS. Standard is very good right now with making sure there are answers to just about everything. But I'll try to list some very solid cards:
Thoughtseize, Domri Rade, Nykthos, Master of Waves, Polukranos, Stormbreath Dragon, Boros Reckoner, Unflinching Courage, Elspeth Sun's Champion.
We can also go last-season's Standard:
Thundermaw Hellkite, Restoration Angel, Geist of Saint Traft, Falkenrath Aristocrat, Olivia Voldaren, Geralf's Messenger, Gravecrawler, Hellrider.
Or how about some awesome combo pieces:
Kiki-Jiki and Pestermite/Deceiver Exarch/Restoration Angel/Zealous Conscripts.
Stoneforge Mystic and Batterskull.
Deadeye Navigator + Zealous Conscripts + Gilded Lotus
Deadeye Navigator + Palinchron