check this deck.. i need ideas to solve my mana problems and any other ideas

Creatures (17)
4 deftblade elite
4 whipcorder
2 dawn elemental
2 karmic guide
1 blinding angel
2 laquatus's champion
1 jareth, leonine titan
1 akroma, angel of wrath

instants and sorceries (15)
4 vindicate
2 reanimate
3 buried alive
4 wrath of god
2 breath of life

enchantments (8)
2 diabolic servitude
1 worship
4 arrest
1 sigil of the new dawn

artifacts (3)
1 lifeline
2 lightning greaves

lands (22)
11 plains
6 swamp
2 fountain of cho
3 tainted field

Total: 65