Sorry if this confuses you but I'll be using the same scans from previous thread to represent each feat.
After downloading the technique from his master to his Key Hachimura learned a move that could vaporize an entire moon
Trinity refers to the combination of a Samurai Princess Prayer, a Samurai Key Holder, and the Samurai. In this case it is just the Princess and the Samurai. Hachimaru's Princess, Ann, gave him enough of a boost to vaporize the moon.
Cut the interior of the moon, the Chamber of Rebirth, which is said to be able to withstand the collision from Earth and the moon.
Which Feat is more powerful.