Fischer: an Angel token and Spirit token
Power is important when gauging the strength of your decks, so it's so necessary to discuss them when you sit down at a table with your group
Dack is a pretty good card when he has no synergy at all, he is great when he is fueling delve and such like
I obviously recommend having one whenever you can, since theres no downside to having one
But if you didnt want to play a Temur deck, a general with a similar cost reduction ability like Kadena, Slinking Sorcerer was going to be very important towards breathing life into this archetype
For example, if the opponent is searching their library for a basic land card, you can't have them find a different card, such as a creature card