Ra rules clarifications

I recently got my copy of the enhanced edition of SotM. I have two questions that came up regarding Ra.

 

1. The interaction between Flesh of the Sun God and Solar Flare -- what happens? The official errata seems to make it pretty clear that if you don't take any damage from Solar Flare (such as if you have Flesh of the Sun God in play) then you have to destroy Solar Flare. However, a quick Google search only revealed people saying that the two cards comboed really well together. Am I misunderstanding something about how one of these cards works?

 

2. Staff of the Sun God -- If you have a copy of the Staff in play, can you play a new copy to gain the life and destroy one of the Staves? Or are you shut out from playing the second copy because one is already in play?

 

Thanks!

1. Solar Flare has been errata'd in the most recent printing so you have to take some damage for it to stay in play. It used to be a pretty amazing combo, which is why you came across those results.

 

2. If a card is limited and you already have one in play, it can't enter play at all and goes straight to the trash without effect. That's why you throw the staff at the enemy (i.e. use the power on the card) and play a new one!