Tezzeret's ultimate is obviously scary--an emblem that animates and pumps up an artifact each combat gets out of hand quickly--but can only happen with a critical mass of artifacts to add loyalty to the heinous helmsman
After the token is on the battlefield but before any player can take actions, +1/+1 counters are put onto the token
While some are infamous for being difficult to interact with, most of them tend to be a fantastic spectacle in their own right
Mechanized Production When I think of alternate win cons, the one that sticks out as the most cost-efficient and impactful, while not overtly threatening as to attract too much attention, has to be Mechanized Production
Multicolor/Colorless Bulk Crucible of the Spirit Dragon Scroll of the Masters Dragon Cycle 1 Month: $1-$2 Dragons of Tarkir: Bulk $2 The Gruul, Dimir, and Rakdos dragons should make occasional appearances in Standard over the next year or so
Buyback [cost] means You may pay an additional [cost] as you cast this spell and If the buyback cost was paid, put this spell into its owners hand instead of into that players graveyard as it resolves. Paying a spells buyback cost follows the rules for paying additional costs in rules 601.2b and 601.2eg