Arena of Valor (AoV) - Tidecaller’s Mark

Of the two tier 3 “water” items, Tidecaller’s Mark is the more consistently effective, as simply sticking to your allies will proc Tidecaller, while Purification requires a high skill floor and can only be used every 90 seconds. That said, you’re giving up quite a bit of CDR for increased defense on yourself. If CDR is important but you insist on Tidecaller’s Mark, then getting The Aegis could recover some of the lost CDR.

Recommended Heroes and/or Situation:

Water items are to be taken over wind items when your priority is protecting your damage dealer(s) at all costs. Devotion mitigates some of the gold lost by your ally when they have to share bounties with you, and Tidal Force will keep nearby allies topped off, reducing the need to teleport back to base.

The Tidecaller passive allows you to provide a service to your team just by existing near your allies. Add in the heavy defensive stats and lack of CDR, and it’s clear that supports choosing Tidecaller’s Mark over Purifying Bracers should be heroes who are durable but don’t rely as much on their abilities to be effective.