The cramp in Nero's foot had not been alleviated just yet - Nursing Touch may be a healing card, but the effect was gradual, not instant. Even so, he forced himself to move, ignoring the throbbing pain running up his leg. The price of not moving would be far worse than just pain, after all.
Binding string was a very useful card, but Nero was pretty sure there wasn't enough aether in his whole group combined to seal the Primal Exarch, so the card would have to be reserved for another situation.
Infinite Lux, however, could prove useful. The problem was that even with these new cards, he was coming close to running on empty. He didn't allow himself to dwell on that though, given that the situation called for him to either pull through or die.