Liesa was known throughout Innistrad for bargaining with the demons that threatened humanity, and that is represented in you being able to pay life instead of her Commander tax
If you get it right, theres money to be made, with even outsiders to the game picking up Reserved Lists cards as part of their portfolio
Looking at feedback can be helpful and you should avoid sellers with a lot of bad feedback, but high feedback is not always accurate
You ignore those targeting requirements if those spells aren't bargained, and you can't bargain those spells unless you can choose the appropriate targets
If Knight of Doves leaves the battlefield while it has an Aura you control attached to it or at the same time as another creature with an Aura you control attached to it, its ability won't trigger for those enchantments unless they were destroyed by the same effect that caused Knight of Doves to leave the battlefield
Frasier adds that they have a lovely bromance occurring throughout the set, and Casey is the only person/card to make Raphael seem reasonable by comparison