User blog comment:Crimson and Darkness/Shin DxD 3 discussion/@comment-82.160.23.173-20191223201551/@comment-29963364-20200109063412

I think Dragonification will be the key to Issei mastering True DxD.

The issue he's had so far is that whenever Issei used True DxD, the power was too much for his body and he nearly died.

We all know that Dragonifying just his arm gave him enough of a "stat-boost" to one-punch a few magicians, so what if dragonifying his whole body does the trick?