Vorinclex, Monstrous Raider
Vorinclex is a any-kind-of-counter commander in mono green. At the same time it works as a tax piece against +1/+1 counter decks and same time turns mono green poison counters, loyalty counter and +1/+1 counters into great numbers.
Themes for Vorinclex, Monstrous Raider
Green Superfriends
Superfriends decks (planeswalker tribal) run a huge amount of planeswalkers and try to beat the opponents with lockdown effects or with massive value. Planeswalker tribals are very popular and green has several strong planeswalker with clear wincons as the ultimate loyalty ability.
Green +1/+1 counters
+1/+1 counters have excellent support in mono green. Multiple spells in green gives counters to the targeted creature controlled by the green player, and then have another effect combined with the counter. +1/+1 counter decks aims to receive massive bonuses from the counters in resources or either they try to grow multiple small creatures into big creatures with the counters.