I find it amusing how vanilla Emrakul is after the first turn, and the leaves-the-battlefield trigger makes it a steal and sac commander that you need to plan around since you're in danger of board wiping yourself
There are plenty of low mana value creatures that have deathtouch, which allows you to start distributing poison counters early on
The main gameplan asks you to durdle and then put in a hefty, continual mana investment into Daxos
Nothing beats rock." It was true then, and it's still true today
If you want to run another commander at the head of your rat deck, keep in mind that many rats in Magic are black
However, outside of that, Cloud also lets you draw for each equipped attacking creature you control, rewarding you for playing out a bunch of equipment and having a wide board