Magic ccg

[Juno]

I just bought the Kor Armory starter deck, as I've been trying out some different decks of my friends and found myself most contented with white magic. I edited it a bit with the Booster Pack I bought and the one that came with it, so here's what I've got so far. Bold is creature, italics is sorcery/enchantment, underline is equipment, and nothing is land.

Armament Master x1(Foil)
Conquerer's Pledge x1
Landbind Ritual x1
Windborne Charge x1
Divine Verdict x1
Narrow Escape x1
Pacifism x2
Trusty Machete x1
Explorer's Scope x1
Spidersilk Net x1
Serra Angel x1
Siege Mastodon x1
Caravan Hurda x1
Kor Cartographer x2
Kor Sanctifiers x2
Kor Hookmaster x2
Kor Aeronaut x2
Kor Skyfisher x2
Cliff Threader x1
Kor Duelist x1
Ornithopter x1
Kabira Crossroads x3
Plains x16

Total Land - 19
Total Creatures - 17
Total Equipment - 3
Total Spells/Enchantment - 7
Total - 46

I added the Siege Mastodon, the Ornithopter, and the Caravan Hurda to up my defense, and also added an extra Kabira Crossroads (that's foil!) and the Cliff Threader. Any suggestions? I have a basic idea of what I'm doing, but I'm not completely sure. I'm considering throwing in a Piranha Marsh and Jwar Isle Refuge as Land to add some swamps, so that then I can use Weakness and Unsummon.

Also, the Cliff Threader's description just says "mountainwalk." I'm guessing that has something to do with ther Mountain land cards, but I'm not sure, need some explanations.