Peema Aether-Seer 
Creature — Elf Druid
When this creature enters, you get an amount of 
(energy counters) equal to the greatest power among creatures you control.
Pay : Target creature blocks this turn if able.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL