Very overcosted card, you must have better ATK at MINIMUM 4, because it's 3 ER.
I know that now the card pool is big enough to create some combos for this, but... it takes some time for preparation. And this is not the strongest side of agression aspect.

My rank (A - C):

C+ (Useful in a very specific build)

Very effective card in combination with Fluid Motion in a Wolverine deck. You play your first attack event for free with Wolverine's Claws, boost you attack and go for Quick Strike for good damages easily.

If you are building a red deck with many ways to increase your attack, like combat training, specialized training, symbiote suit, now Im mad, aggressive conditioning. You can make this card get some great value eventually. I don't think its a very good card, but in some builds it can become a heavy hitter, effectively letting you get the effect of a ready for a 2 cost card if you were going to attack anyway.

Think like Ant Man, go giant form, gain 5 attack from your 2 upgrades in his base deck. Then another +5 from the upgrades listed above, you are now 10 attack. 2 cost event for 10 damage will end games fast. The above cards some are good enough to play on their own, others are a bit crap but still. In a build doing this stuff anyway, it's decent.