Whenever Emissary Green attacks, starting with you, each player votes for profit or security. You create a number of Treasure tokens equal to twice the number of profit votes. Put a number of +1/+1 counters on each creature you control equal to the number of security votes.
Emissary Green is a mono-green Council's Dilemma commander that rewards combat. Each attack forces a profit/security vote where you either flood into Treasure ramp (profit) or pump your whole board with +1/+1 counters (security). You leverage the fact that opponents rarely give you the result you most want, so you build to capitalize on both outcomes—going wide with creatures so security counters matter, while using Treasures to power explosive plays.
Every attack generates value regardless of how the table votes
Treasure ramp accelerates into huge green threats and X-spells
Mono-green gives access to the best ramp and big-mana payoffs
Scales well with a wide creature board for security votes
Cheap five-mana commander that impacts the board immediately
Only triggers when attacking, so it's reliant on connecting in combat
Opponents control the vote and will pick the worse option for you
No evasion or protection built in—easily removed or chump-blocked
Mono-green lacks interaction, card draw consistency, and removal
Vulnerable to board wipes that erase your counter and token investment