Copperhorn Scout

Whenever Copperhorn Scout attacks, untap each other creature you control.

Ivy Elemental

Ivy Elemental enters the battlefield with X +1/+1 counters on it.

Dwynen's Elite

When Dwynen's Elite enters the battlefield, if you control another Elf, create a 1/1 green Elf Warrior creature token.

Marwyn, the Nurturer

Whenever another Elf enters the battlefield under your control, put a +1/+1 counter on Marwyn, the Nurturer.
{T}: Add an amount of {G} equal to Marwyn's power.