You get shards! And you get shards! Everybody gets shards!
Be generous with your group and on the enemy; throw more often during dps checks to help out. If dps asks for shards and you don’t know where they are, throw it on tank. It takes time to throw them with precision, so practice practice practice. The cooldown for synergizing them is 20 seconds and that’s shared with orbs (don’t get me started). Keep in mind you can only have one shard out at a time, so if you throw one on tank and then immediately throw another one on a dead dps, you’ll just make the tank mad. As a plus, slotting an Aedric Spear ability increases your critical dmg (heals, in your case).
Thank you to Harven for a wonderful little add-on that lets you see different morphs of a skill. Super handy!