Pokemon

Pokemon like deck a lot. It would go good with avalanche. BLLLLAAAAAHHHH!

you could include contagion engine

I think you should do a might of oaks with a distortion strike combo for a granteed win on you 5 or6 turn.

I personaly like contagion engine better then contagion clasp but I see you are trying to go for speed so that can be a sideboard but you should include some corpse cur

you should include some more low costing cards becuase infect decks are suppose to be fast and deadly but some of the cards you have you do not really need. you can take a look at my infect deck if you want for some ideas. in this deck i make black work pretty well.

You should include some more green/black infect creatures because they got some good abilities. you can check out my infect deck if you want and probably get some ideas

I think you need to include a sthiryx in this deck. I also believe that and infect deck should not only be one color because you need to either be "unblockable and proliferate"(blue) or just "jake up"(green) you should check out my infect deck I use these three colors pretty well you might be able to get some ideas from me

The only reason why wall of deceit is there is if I need a quick creature really fast but the other walls you mention I will consider deeply

I think you can put in some transandant masters. also some walls of reverence

I would include some might of oak to get a lot of damage done with plague stinger

Thank for that card, I fogot

If you are going to run an artifac deck you need tezzert the planeswalker memnites, ornithpter or other 0 costing artifacs

This deck need tangler angler or a black color side to it

If you are ever going to make a TOKEN spawning deck you NEED either Elspeth Tirel or Elspeth, Knight-Errant

if you are life draining then you might want to thrrow in some blood seekers just for fun

This deck is great but you need more cards that are flying and protection from black because they can still fly over your creature( pun intended) with black demons

I would suggest the basic spell cards for each color such as some lightning bolt, pactism, graps of darkness, cancel, and cultivate

in the end the finally deck all depends on you but if you are going to get the setup that lets you spawn tokens that i would seriously concider some good devour cards because I have seen some land fall decks that spawn and then devour to make that creatrure really strong.

If you are going to focus on infect, i would suggest taking a look at my deck you can proably find some thing you like. If you can find some cards that give creature flying or first/double strike then your deck can seriously win

This deck is great but I would include a lot of fetch lands such as cultivate