Originally Posted by
Squigglyo
I cant seem to find any solid info about this, every guide is very vauge.
Radiant Echo Mode - Earns Valorstones and Coffer Keys
Many Radiant Echoes Mode - Costs 5x the Echos, drops 5x the loot. Nothing special, just better for your time.
So the only reason to do Radiant Echos would be to grind out the achievement that unlocks the Radiant Discord mode. Once you have that, unless your depserate for keys, you may as well just wait till you have 5 and only do Many Radiant Echoes?