Bolster Artifact Set

The Bolster set is a 4-piece artifact set that grants a protected 30% HP Ally Shield for 3 turns, whilst also healing the wearer by 10% every turn. A nice set to help with survivability in waves, better used on high HP champions. Due to not having Bolster accessories, you can only have one full set on a champion.

This set can be crafted in the forge using materials from some Forge Pass rotations. This is a mix of a Shield set and Immortal, but since it gives a protected Shield buff which cannot be removed, it is much more powerful in Arena or Faction Wars. The mini-Regeneration effect is the cherry on top, making this a fantastic set for keeping your team alive. You can still use strong individual pieces as off-set gear when stats matter more than set bonuses.

Bolster set is an upgraded version of Shield and Immortal. This Shield is protected, which gives extra survivability,  and we get more 7% more healing than Immortal. So it will replace both these sets once you gain access to it.