Wirewood Warcaller

When Wirewood Warcaller enters the battlefield, other Elf creatures you control get +1/+1 until end of turn.
Encore {4}{g}{g} ({4}{g}{g}, Exile this card from your graveyard: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)