So, this one is a bit tricky, because it depends on when the poison was applied
Bloodstained Mire Bloodstained Mire is in the colors most likely to benefit from paying life or sacrificing permanents
The triggered ability deals damage to the creatures controller even if the creature isnt dealt damage, perhaps because it has left the battlefield or because the damage was prevented
You have to have it get in, you have to have something to sacrifice, and you need mana to cast it
In many instances, Sabrina can be used to force a Basic or Stage 1 Pokemon into the Active when they arent ready, setting you up wonderfully for the rest of the match
If the greatest power among creatures you control is 0 or less at that time, you will not draw any cards