Lich's Mastery not preventing any damage. [investigating]

Khaalis

CARD

Lich's Mastery

Support; Enchantment

Mechanic issue

EVENT

• Nodes of Power
  

• Black Node
  

• No Event supports

• Garruk Cursed Hunstman
  

MECHANIC ISSUE

• Lich's Mastery prevented NO damage at all.
  

• No Prevent Damage evergreen was added to the PW when it came into play.

• Damage was taken from: Discarding a card via Citadel, from Opponent PW's ability (Lilliana UbD using 'Fill the Graves'), and from casting Grim Tutor. - None of these should have caused damage once Lich's Mastery was out.
  

This was tested in 2 different matches. Same behavior. Lich's Mastery did not Prevent Damage but it did still:

• Discard a card at the end of the turn
• Dealt 30 damage when destroyed (tested in the first match)
  

In both matches the Only cards in play on my side:

• Bolas' Citadel
• Skeletal Swarming
• Crypt of Agadeem
• Lich's Mastery
  

Opponent had only a land in play and 1 token creature in the first match; NO cards in play in the second match.

Khaalis

3rd Test. Same event/node. This time against Vraska. Same deck. Same results. Lich's Mastery prevented ZERO damage. It is NOT applying the Prevent Damage evergreen to the PW.

After casting Lich's Mastery at 12 Life - no Evergreen

The next round after taking damage even though Lich's Mastery is still out:

Khaalis

Oh, and as you can see from the screenshots, the last 10 points I lost were from opponent creatures.

Khaalis

Ok, so this was user error. I failed to be aware that Citadel had changed since last I used it. The Citadel + Mastery combo no longer works unless you can remove Citadel before playing Mastery.

Magic:PQ Support Team

Hello,

Thank you for all the information provided, this issue will be investigated!
If you have any additional information that you consider relevant, please don't hesitate to send me 😊

Rebeca.