So long as you keep cards that can remove damage from these characters on standby (like Dinglehopper, Hakuna Matata, or Cinderella, Gentle and Kind) you should be able to keep the gravy train rolling until victory is yours
This is especially true when combined with other effects that double power and strong creatures.
I still can't imagine being able to do anything on the level of what I consider to be a truly great alter, but it's fun and I can tell that I'm improving
While you do have to sacrifice an artifact as part of the casting cost, being able to place any artifact in your deck onto the battlefield for its mana value + 2 blue mana is incredibly strong, and can be useful during almost any part of a game
Flavor Text His mind whirled with grand plans, never thinking of what might happen if he were to succeed
Fuck yeah, Time Elemental