Numerics

• Recap: I like calculating at; 2 Damage per 1 Resource. 1 Thwart per 1 Resource. Piercing is worth 1 resource.
• Total Cost: 3 Resources.
• Goal: 6 Damage or 4 Damage + Piercing
• Actual Value: 3 Damage + Piercing
• Summary: 3 Damage + Piercing equates to 2.5 resources worth of value (less than ideal).

Conclusion

In my opinion, this is a total counter-play card. If you know you're going up against a Villain who spams Toughness a lot, this is a card to grab. Alternatively, if there's ever some kind of build that allows you to add Toughness to enemies for some kind of huge benefit, this would also be a good card to grab for that.

If you're running a Hero who has only 1 ATK or lacks powerful Attack events, this card loses some additional value. In the sense that, you would want to use this card first to allow your Hero to follow-up with a big attack; whether that's a high basic ATK or an Attack event card.

As it is, you could spend 1 extra resource for Uppercut. Or, play Drop Kick and get arguably better results more often than not. For that reason, I'm not super stoked by this card. It's a below-average niche performer. It'll have its moments, but I think you're better off with slotting other more consistent attack events.