Reach

{T}: Put a nature counter on target artifact or enchantment then add {G}

{G}{G}{G}{G}{G}: Transform Sylvan Highlord. Activate only as a sorcery

At the beginning of each players upkeep exile target artifact of enchantment they control with a nature counter on it.

{1}{G}, {T}: Each opponent chooses a artifact or enchantment they control and puts a nature counter on it

{T}: Add {G}{G}{G} for each artifact or enchantment exiled with Primal Monolith