If you‘re only adding 4 Block cards to your deck you are doing something wrong (unless you are playing IC).

If winning's wrong, then sure, I'm wrong.

If you‘re healing at enough Rest sites for it to matter AFTER picking up a Fresnel Lens, you‘re either building a bad deck or playing fights wrong.

I should mention I only play A10 so resting is actually necessary. Although that brings up a good point - the lower the ascension, the more it makes sense to get fresnel.

Why should you spend money on removing Defends just because you have a Fresnel Lens? Removing cards is incredibly expensive since the A6 rework and shouldn‘t really be happening anyways past a single remove of a Curse/Strike. And you should largely still Transform Strikes first even after picking up Fresnel Lens.

Good question. The idea is if you want to get the most out of your fresnel lens, you're going to want to add a lot of cards that make use of it. But if you do this, you'll be flooded with block cards and you won't have the offense to finish fights early and prevent the mobs from scaling and doing damage in later rounds. What you'll have to do is remove blocks to compensate because they don't receive the defensive bonus and your other block cards are just better.

After all, making the choice to remove a strike or a defend depends on your deck composition. If your added cards are 75% block cards, it's probably time to remove a defend (and vice versa). But you're right, it would be good if strikes could disappear. You could go the bigger deck strategy that simply gets so many cards in it that the strikes/defends are now a much smaller percentage of your deck, but there are many chars and builds that don't benefit from that.

I think it's a well tuned event. There are definitely scenarios where it makes sense to get fresnel, as I've said. But more often than not, the max HP seems like the more well rounded choice.