Channeler Initiate 
Creature — Human Druid
When this creature enters, put three -1/-1 counters on target creature you control.
, Remove a -1/-1 counter from this creature: Add one mana of any color.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL