As far as Gaia the Fierce Knight support goes, this card is way too little, way too late.  There's only so much you could to make a LV7 2300 ATK Normal Monster viable.  It doesn't really give you any card advantage and plenty of generic cards do a better job at summoning Gaia.  The graveyard-based Spell Counter effect is very underwhelming as well.  This card is bad even for fun-deck standards.
 
1/5

Skilled Blue Magician, much like his brothers, of the Dark and Light variety, respectively, allows you to remove himself from the Field via Tribute with 3 Magic Counters (via a Magic card activation) to Special Summon a Monster.  This time, any monster of the Gaia the Fierce Knight variety.  1800 attack and defense makes him a solid enough Monster, and the Light attribute can be quite helpful.  Furthermore, you can remove this card from your Graveyard from play to add a Magic counter to an appropriate target.  This card isn't as bad as the rating will suggest, it's just not even close to relevant, as the Gaia family isn't either. 
 
Rating:  2/5 
Art:  4.5/5

After a break, The Almighty Pojo has us back at reviewing things. First up is the Skilled Blue Magician, the 3rd piece of the Skilled Magician set. You're well versed with Skilled White and Dark Magicians by now, if not, for shame. Skilled Blue Magician has the same effect as the other two, but when it reaches its 3rd spell counter after 3 spell cards have been activated, you can special summon 1 Gaia The Fierce Knight from your hand, deck or graveyard. But Skilled Blue has another trick up its sleeve that his counterparts do not have. You can banish this card from your grave to place a spell counter on a card you control that can hold them. (EX: Skilled White and Dark Magicians, Breaker The Magical Warrior and Magical City of Endymon). While have impressive stats of 1800 for both ATK and DEF, Skilled Blue has a few places to call home in a deck, such as a dedicated Fierce Knight deck (Yes, they exist) and cards that need spell counters, like Spellcaster burn. It won't find a place outside of those, but it still can be handy in the right deck.
 
2.5/5