With Stand Alone in the card pool, I find myself considering it more often in multiplayer. If I’m first player—or if everyone before me is in AE—I’ll defend the villain’s attack but miss the free ready from Stand Alone. Using "I Can Do This All Day" lets me pull an extra attack from the villain to ready myself, defending the attack with my DEF, and stay un-exhausted to use my basic activation on my turn.

Cuts Both Ways achieves a similar effect for 1ER less, but you need to either take the damage from the second attack or exhaust to defend, unlike "I Can Do This All Day".

Army of One is the odd one out from the no-ally package including Ronin, Stand Alone and In Harm's Way in that it does not explicitly benefit a high DEF strategy. The Best Offense... bridges the gap as it lets you use your DEF for your THW or ATK, but you are taking a chance that you draw these at the same time. Readying for 2 ER is generally not worth it only to thwart or attack for 2, but it becomes ok with a stat of 3 or if your hero has other incentive to ready. Quicksilver and Drax come to mind as heroes with large stats and resource rebates for readying (though playing Drax without Mantis sounds tough). Hulk and She-Hulk reach high ATK values that justify the cost on its own. Don't assume that any deck already playing Ronin, Stand Alone, and In Harm's Way wants this, but certain heroes will, and in fact might even be pulled into the archetype because of it.

Seems to be pretty handy with Nightcrawler if you already have a Bamf! attached to the villian and have spare copies in your hand that you don't immediately need.

Or if you end up with a leftover card at the end of your turn you could use his hero ability to retrieve a copy from the discard pile to tick under this card too.

This card needs to be errata to the new 'Starting." never seeing it in a game kind of sucks and fishing it out the deck is not that easy. Falcon can play Yellow Jacket to help, but Buck cannot and mulligan only goes so far

Huge change since 1.8 rulebook. The "surge" effect is now a "When Revealed : deal yourself a facedown encounter card"

It has been confirmed by FFG that you can now cancel "Surge" too with this card !!! Extremely strong in Expert mode now.