Grand Archon Ardaline

Other red and/or white Elf creatures you control get +1/+1 and have Melee. (Whenever
that creature attacks, it gets +1/+1 until end of turn for each opponent you attacked with a creature this combat.)
Other green Elf creatures you control have
"{g}, Sacrifice this creature: Prevent all damage that would be dealt to target Elf creature you control this turn."