8 Grounds Kaho (Casual)

This deck focuses on the cheapen-effect of Training Grounds and Biomancer's Familiar (our 8 Grounds).

Our main wincon is Kaho, Minamo Historian who tutors for 3 instants and so gives us many possibilities of how to play this deck. I decided to use the instant mass removal Duneblast and Settle the Wreckage, some counters (Counterspell and 1 Insidious Will) and as finisher 3 copies of Searing Blaze.
As a second wincon I chose Steel Hellkite. He has activated mana-abilities and profits from the 8 Grounds as well. Besides, he is boardwipe on a stick and a strong evasive creature.

With Magus of the Candelabra we can ramp pretty easy if we have one or more Grounds on the board.

Refocus and Thousand-Year Elixir lets you untap Magus of the Candelabra for more ramp or Kaho, Minamo Historian which can end in a little combo turn (for example 2 activations of Kaho casting 2 copies of Searing Blaze).

2 copies of Brainstorm can be used to put cards back onto your library if you draw a card you want to exile with Kaho, Minamo Historian.

I tried to give you access to every color so that you can cast every spell if things (or draws) went bad. If you can efford it, you can upgrade the manabase with fetches and shock-duals.
But since Training Grounds is expensive enough I chose to keep the manabase budget.

As already mentioned, this deck can be played in many different ways (as far as instants for Kaho are concerned). Which cards would you choose to play here? Maybe you know a more efficient ways of playing this? Tell me! =)