Two Strong Cards to Start With - 2 Card Review 

I love doing these.

I use Nerves of Steel literally 100% of the time when I'm using a perfect defense build. It's just too good not to include, especially if my hero has some defense cards as well. I always have at least 7-8 events to justify using Nerves of Steel. Order and Chaos is very strong as well, I also agree with you. But because how hard is to pull off. Especially since you have to reveal a treachery which isn't always going to happen. Fortunately it doesn't have to be your treachery. I only used it once, when I played Quicksilver and a friend played Scarlet Witch and I think we managed to pull it off once during 2 games.

Nerves of Steel is great in the right deck, but I've been running Judoka skill more in my perfect defense builds, and often run just the 0 cost events, so it hasn't seen play in a while for me, certainly less often than its justice or aggression counterparts. I'm excited to try it with Nightcrawler when he drops! Order and Chaos is a great card if you can hit it, but I find its harder than most the Team-Up cards to hit unless you actually have both as players on the board. The Quicksilver ally is expensive, and he's just about right at the cost curve, so unless I really need 4 damage that round or draw him the same round as Chaos Magic, I'm usually spending him as a resource, not playing him. The Scarlett witch ally is a little better, but its still hard to justify deck space for a may hit at the right turn card like that. I think I'd include it if I was trying to run one of them as a Sidekick now, however, which also really helps both their alter-ego abilities.

Quicksilver Wanda Team up is more valuable because you already want to have them for the juicy AE