Current behavior:
The Saga [[Battle at the Helvault]] has the same rules text for Chapter I and Chapter II. While Chapter II exiles all targeted creatures, Chapter I does not. I've made sure to select all desired creatures when they light up but despite the Saga resolving they won't get exiled.
Only after my Draw Step when the lore counter is increased to two and after selecting a new set of creatures those last 3 will be exiled.
Chapter III resolves successfully every time.

Expected behavior:
The saga exiles 3 creatures when it enters the battlefield and when the lore counter is increased to 2.

Steps to reproduce:

1. Launch the XMage-Server in Testmode.
2. Create a 4 player Match.
3. Use the provided cheat-setup below.
4. On your turn play Battle at the Helvault
5. Select 1 creature for each player.
6. Confirm your selection and let the spell resolve.

Cheat-Setup:

[Helvault Test]
battlefield:Computer:Kitesail Corsair:2
battlefield:Computer2:Grizzly Bears:4
battlefield:Computer3:Storm Crow:3
battlefield:Human:Spyglass Siren:2
battlefield:Human:CLU-Plains:6
hand:Human:Battle at the Helvault:1