Met Greed at T1 yesterday and gather roughly 30mil gold and loads of Imperial gems.

Ninja nerf work fast.

If you already have Boon of Hoarder gem either in your backpack/stash, you won't get another gem.
But if you sell you existing gem before you enter the vault (at least in my case), you can get another Boon of Hoarder gem after you kill Greed. You can buy back your existing gem after Greed drop the second gem.

What if you found a vault portal while having a Boon of Hoarder gem in the possession of current characters? You want to waste a chance to get another gem?

I found 1 yesterday and able to get another gem despite my char is having Boon of Hoarder with him when the goblin I killed open a portal to the vault.

So scared for maintenance since it's Tuesday, around 5 something in the evening.

I notice a new type of Goblin that drops Blood Shard. First saw it in the vault.