Giving -X/-X to all creatures gets around indestructible, protection, and damage prevention
Finally, thanks to colorless Commander decks being a thing, be it artifacts, Eldrazi, or whatever, you need to have card draw in these decks
You can also pay two and sacrifice two Artifacts to either deal three damage to a player or a Planeswalker, give a Creature -4/-4 until the end of the turn, or gain five life
It is not subtle
The Boros Deck Source: Reddit Similarly to the Dimir Starter deck, most cards are pretty tame The Elegir un trabajo mechanic (Choose a job) is very similar to the For Mirrodin
This card is going to be huge in Commander for decks with access to white mana, because what do you mean your spells gain Flash just because someone else cast a spell