Wrong card tooltip / Incorrect calculation: Discover the Formula > Split Cards / Commit // Memory
The ingame calculation is wrong when using "Discover the Formula" in historic.
When you fetch a split card, in my case "Commit // Memory" both halves of the card get "This spell perpetually costs 1 less to cast".
BUT:
The Mana costs get reduced twice for each split part of the card.
Commit costs 1U and Memory costs 2UU.
Each split half has the phrase "this costs 1 less to cast" twice on their half, so 4 times in total on the card.
Commit was blue-bordered, ready to cast, when i had 2 mana open.
When i tried to cast it, it asked me for the correct cost, 2U though.
It should show the correct cost all the time, the reduction only applies once for both cards of the split. Commit should not be blue-bordered, ready to cast, with 2 mana open after casting Discover the Formula.
No screenshots, no logs, easy to reproduce.