The mana sink for proliferate is especially strong when you pepper the battlefield with poison and -1/-1 counters on your opponents' stuff, and +1/+1 counters, shield counters, and planeswalkers on your side
Jobs come in the form of special equipment artifacts with the 'Job Selected' mechanic, which will create a 1/1 hero token when the card is played, with the equipment automatically equipping to the token
The first strike makes it a solid attacker as well in the early stages of a game, making it great in combat and ensuring you'll get a lifegain trigger thanks to lifelink
The collector's chests - Collector's chests have an expansive collection of cards from a given set and are great for committed players
These decks can be scary, but its worth it to add an interesting mechanic to the table
While we would have been happy with a +1/+1 buff or First Strike, Ultra Magnus actually gives all of them Indestructible