Aldra Hagerot

Whenever a creature goes into or out of the graveyard create a potion token. {T} sacrifice a potion token: roll a d20 1 lose 4 life and gain a poison counter. 2-10 lose 2 life. 11-19 gain 2 life and remove a poison counter. 20 put to shield counters on target creature and gain control of target creature as long as target creature has shield counters.