Uw chalice of death(help plz)

[Tetsomori]

Ive been working on this for a while now.. 
3 {Stonehorn dignitary}
4 {snapcaster mage}
2 {wurmcoil engine}
1 {drogskol reaver}
3 {day of judgement}
4 {ponder}
3 {oblivion ring}
4 {chalice of life}
4 {mana leak}
3 {venser souljouner}
2 {phrexian metamorph}
3 ?!!

Got the lands for it just need 3 more instant/sorcerys any ideas?

[Tetsomori]

Any help would be awesome

[#noided]

Maybe some card draw like {Think Twice} or {Forbidden Alchemy}.