Help with my custom set : Rings of Vryn [ need all sorts of cards ! ]

Hi some of you may have seen my set [ http://mtgcardsmith.com/user/RingsOfVryn ] Rings of Vryn and i need some help with cards !

I have all the mythics complete [ http://mtgcardsmith.com/user/RingsOfVryn/sets/6335 ] and need help with all colors and other rarities ! I'll try and keep some freedom with what I need so here are some of the races on Vryn that are notable and names / factions to help : )

Birds, Wurms, Golems, Constructs, Humans, Zombies, Soldiers, Warriors, Wizard, Sphinx and Nomad
Trovian Seperatists, Ampyrn League, Southern Raiders and Mage-Ring [ pre-fix ]

All cards I've made are on my set and account i'll make sure to credit you for your card and or inspiring cards : )

Custom mechanics that can be used:
Impulse N (As you cast this spell, you may pay N. If you do, cast this spell again.)
^Mostly seen on white, blue, red, green, rarely black

Mana falter (After this [ permanent, ability, spell, etc. ] resolves players can't produce any mana until the end of turn.)
^Mostly seen on black, blue, red and white, rarely green


Grimoire - When this [ permanent ] [ preform interaction (attacks, blocks, activates ability, enters the battlefield, and so on ) ] you may reveal your hand. If you do, [ effect ].
^Mostly seen on green, red, blue, black, rarely white

: )