This Merlin on BBC photo contains
breastplate, aegis, egis, fauld, armor plate, armour plate, armor plating, plate armor, and plate armour.
There might also be
sallet, salade, brigandine, and armet.
Merlin's dying so is left to go with Lancelot back to Camelot, but Arthur has to carry on to the isle of the blessed. Merlin doesn't want Arthur to go without him.