The rule is actually still in the comprehensive rules just in case anyone wants to play it unofficially for fun
Emmara, Soul of the Accord [Best Token Commander for Tap-Based Token Generation] Emmara is the best token commander if you want a safe way to generate tokens
PARTNER WITH ALLIES AND BUFF YOUR TEAMUnleash mutagenic mayhem and battle your friends in Commander, Magics most popular multiplayer format
Even though it cuts Achilless cost in half, Id prefer the buff pre-combat if Im going to invest any mana into it
With prowess cards and Boros Charm, you might get tired of taking 3 to the face and losing pretty soon
Summon: LeviathanSummon: Leviathan, in particular, is extremely potent in such builds as it delivers a Whelming WaveWhelming Wave for its first chapter and then draws you a card whenever one of those creatures attacks (a trigger for each one, that is)