Leyline of Sanctity bug
Earlier in a game I had an untapped black mana source, a copy of sacrifice in hand, and my opponent had a leyline of sanctity out. I evoked Grief, and even though I can't target them, I should still have been able to respond to the evoke trigger to allow me to use Sacrifice to cast Sorin to get Elenda, Saint of Dusk into play. Instead it went straight to my graveyard, which cost me my opportunity in the sudden death
1
vote
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Rezzahan#77802
commented
You have to be in Full Control to respond to your own spells and triggers. Otherwsie, Arena goes with the tournament shortcut of passing priority.