Here are some options i would like to use
Creatures:
Vigor (highly recomended),
Ravenous Slime (i think is a real good option with Reyhan), Royal Guardian,
Yahenni, undying partisan,
Avenger of Zendikar,
Pir, imaginative rascal,
Bloodspore ThrinaxEnchantments:
Death's presenceDraw:
Greater Good (it allows you to sacrifice to get some
profit instead of just see your big creatures die for nothing against an area)
Land:
Forge of heroes, (and you should have less black and white, and more green),
Blighted Woodland (for ramp)
Wincon:
Triumph of the HordesI think u should take out Mikaelus (or if u want to combo with
triskelion put
tooth and nail, and i would use hangerback walking balista), Ajani, Bramblebood paragon (if u want trample, nylea is better), Anafenza (the white one), Maelstorm
purge,
HarmonizeI hope this helps you.