Collectible Card Game Headquarters

Hardened Beserker's (DTK) Mana was lost in between the declare attackers step and the declare blockers step.

Hardened Beserker's Mana ability worked when I used a spell on a the declare attackers step directly after the mana was made.

As that card hasn't been coded in Manalink yet and you have only posted in XMage's forum before I'm going to assume you are in the wrong place. This is the forum to post bugs related to Manalink. You have to report issues with XMage in their forum.

BeorTheOld wrote:Hardened Beserker's (DTK) Mana was lost in between the declare attackers step and the declare blockers step.

Hardened Beserker's Mana ability worked when I used a spell on a the declare attackers step directly after the mana was made.

Hardened Beserker does not create mana or adds mana to the mana pool.
It reduces only the mana costs by for the next spell you cast.
So you mean you had no reduction for the next spell you casted?

I saw no reduction when playing with this card. I attacked, and my Temur War Rage still cost 1R, even though it should discount to just R.