It can also serve to clarify how some cards with unique and confusing wordings function
C Common The Legendary Fisherman II X WATER Level 5 [ WarriorEffect ] ATK 2200 DEF 1800 This card's name becomes "The Legendary Fisherman" while on the field or in the GY
If you'd like further reading on some of the common arguments (and why they're incorrect), Patrick Chapin wrote a great article on this very subject that you can read here
That may sound narrow, but its amazing for grabbing utility creatures like Mother of Runes, Esper Sentinel, or anything else that gives you cheap power or combo potential
According to PriceCharting, a great tool for monitoring Pokmon prices, Charizard ex #223 - the primary chase card for Obsidian Flames - is sitting around $70
Waterfront Bouncer (Masques/Nemesis/Prophecy) The best non-rare Spellshaper, Waterfront Bouncer was perhaps the most powerful common in the format in and of itself