Vital Transfer

You siphon a portion of your own vital essence off and funnel it into a perishing creature. Choose a creature within range that is at 0 hit points and making death saves, the next death save they make before the start of your next turn has 1d4 added to the roll. Until the start of your next turn, the first saving throw you make has this spell's bonus subtracted from it. 

This spell’s bonus increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (4d4). If a creature succeeds on their third death save while under the effects of this spell, they come up to 1 hit point and are conscious.