Price Check 3

Let's see if I can do a few checks today:
(All of these are from 7th edition)

• Counterspell 1.80 to 1.00
  
• Spellbook 1.80 to 0.75
  
• Blaze 1.58 to 0.75
  
• Thieving Magpie 1.35 to 0.55