Backlog Sinister Possession Bug

[theycouldbestarlings]

Playing Sinister Possession in Chaos Cube Phantom Draft. Enchanted opponent creature. Opponent does not lose life when creature blocks, only when it attacks. This ruins the play experience. Please fix and compensate. thanks.

 

[TX22]

This still happens, opponent lose life only when creature attacks but dont lose life when creature blocks... Big problem for Sinister possesion players