So all your creatures effectively have haste
By the way, do stay tuned to us as we will be making content on the Pre-cons for March of the Machine and even play a game where you get to see us do our own shenanigans on camera
The Job Systems, for instance, have made the jump, but behave differently from the Classes featured in the Dungeons & Dragons set from a few years back
Alchemy and Historic also allow Wizards to rebalance cards, modifying them slightly rather than banning them, something that would never happen in paper
I dont see this doing much outside of Commander, but I shudder to think of the games that this card hits the board on turn 3 or 4 and dominates, especially alongside Garruk's Uprising and similar cards
Killing an opponents creature doesnt matter much if you give them time to draw into a second one, so you need to make use of the advantage while you have it