It won't work well for legendary Zombies like Grimgrin, but any other Zombie will get a twin to rapidly fill the board state
Thats about as smooth a ramp as you can get, but you can also add three counters, then double a creatures power and toughness and give it trample until end of turn
Sacrificing a creature used to be a major drawback for decks, but in the modern game, with token creation aplenty, sacrificing a creature and paying to kill a foes nonblack creature is a straight-up bargain, especially when you can simply sack some lowly token that you can immediately create another one of
You can also self-select how seriously you take battles before heading in, which I really love: another example of simplicity working to beautiful effect
This blue enchantment lets you cast spells from your hand for free, completely ignoring their mana costs
Here is a personal analysis of each element of the Commander rules and the reasons why this format is so attractive to so-called kitchen table players: 1