Doran, the Siege Tower Likely the best option as a commander for Treefolk decks, Doran, the Siege Tower introduced the ability for creatures to assign combat damage equal to their toughness rather than their power in 2007s kindred extravaganza Lorwyn
For more information, please see the most recent version of the Magic Tournament Rules at wpn.wizards.com/en/document/magic-g (2021-07-23)
The [When Attacking] effect wasn't present when you declared the attack, so it doesn't activate
As mentioned above, I plan on having other cards available (MEGA Pokmon, ACE SPEC Trainers, etc) but this may be something Ill only have as elements in the Expert Pack or as an overlay versus a proper card outright
games from over twenty years ago, featuring Yugi and his companions