Talk:Day 151-160/Day 153/@comment-36281601-20190301225733/@comment-38244500-20200202171038

I mean, Technically?

When techniques are synthesized to make new techniques, Rou loses the ability to use the originals while still keeping them on his abiity list.

For example, on Day 82, Rou explicity states that after synthesizing [Weakness to Light Damage] and [Weakness to Sunlight] to make [Extreme Weakness to Sunlight Damage], that the original abilities remained with him but could not be activated. This failsafe was presumably put in to keep him from re-gaining abilites that could be potentially lost during the synthesizing process.