Delirium Bug
I cast my opponent's Unholy Heat (Delirium) off of my Crabomination. Even though I did have 4 different card types in my graveyard, it did not apply the Delirium bonus. My opponent had Delirium active as well.
2
votes
Sleed#27832
shared this idea
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Allseer#21616
commented
Delirium is working when there are only three different types in the graveyard