Arcanis the Omnipotent, sadly, is often under-rated by today's player base
This card prevents damage to a target permanent you control if you choose to add to its counter, but by adding no counters, it becomes a 4/4 indestructible creature that prevents all damage to it
It's easy to misread the second ability, which for my brain translates as my small ground attackers can get in unblocked unless fliers swoop down to block. One important note there is that the blocking restriction applies when other players attack your opponents
Sword of Once and Future Information is power
Table of Contents show What Are Charge Counter Cards in MTG
While Treefolk decks will likely only be two or three colors normally, this Treefolk Druid is still a notable mana-ramping creature that can capably aid your goal of getting as many foliage-fringed bodies onto the battlefield as quickly as possible