"You really did a number on your body making things for Grace. But I understand." Ralph just nodded as Clark spoke.
When Clark had taken a closer look at the damage that Ralph had done to his hands and arms due to crafting things well beyond his limits, he had found that it was a little worse than expected.
His arms were strained to the point that there would be damaged muscles for at least a month with constant healing treatments and healing potions being given. He would also need to ensure that he was always providing proper energy crystals to his beasts.
The simple reason for that, was that strengthening their bonds through sharing more energy would help Ralph repair his own body and grow stronger. While it was a process that would take a month, the strictness of how Ralph would need to stretch and refrain from working beyond a certain point was firm. Not doing so would extend his inability to forge greater items for much longer.
Creation is hard, cheer me up!