Shard of Bek: Your damage is increased by 2-3% when you have 50% or more health than your target. If you take damage you can lose the buff.
Shard of Cor: Your damage is increased by 3-4.5% for 20 sec after attacking an enemy you have not yet damaged. Buff only lasts 20s.
Shard of Dyz: Damaging a target increases damage done to that target by 0.33-0.5% for 4 sec, stacking up to 3 times. Stacks can fall off.
To get 5 gems you would have to give up over 100 primary stat (active 100% of the time). How do you think that measures up against those gems?
3 gems absolutely worth it to get the set bonus, 4 gems sure why not, 5 gems worth it if you can fit it but not worth recrafting a legendary.
I’m just going to keep posting this until you drama queens settle down.