When helping in Thordan learning parties where the dps is abysmally low so that Awareness, Foresight, and Clemency can just barely be used twice, I've actually gotten through Blade Dance just fine (like... consistently a nice 300 hp remaining, or 3.3k with Clemency crit) just with Foresight, Shelltron, Awareness, Convalescence, and a pre-cast Clemency (heal hitting on the 3rd hit, with Shelltron blocking the 4th; no further RNG blocks needed). Drop the Foresight, and I die. Similarly, my shittily geared pure str PLD can survive the cleave, Heel, cleave combo before phase shift even with just a Foresight, pre-cast Clemency, Shelltron, and a second pre-clemency, no Cure IIs needed. Again, without the Foresight, I die.

6% mitigation is quite nice when you would otherwise have died by 4%.