Is shard of readiness more rare than others?

[Calindu]

These are my Shards, sorted by rarity:

• 1 Shard of Patience
• 2 Shard of Void
• 4 Shard of Serendipity
• 7 Shard of Sacrifice
• 9 Shard of Readiness
• 12 Shard of Divinity
• 12 Shard of Gratitude

So, no, Shard of Readiness is one of the easier to find, for me. But as Willng3 said, it's random, there is no rule for that.

Patience is the rarest for me too, and Void also seems to be pretty hard to find. The others I haven't had too much trouble with. Back when T50 was how you got shards, I remember SoG being the most common and SoR the rarest, but maybe that's just me.

You need to have Patience to get 12 SoPs.