Shadow-Rite Priest 
Creature — Human Cleric
Other Clerics you control get +1/+1.
, 
, Sacrifice another Cleric: Search your library for a black creature card, put it onto the battlefield, then shuffle.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL