Overlord Sliver Commander (EDH / Commander)

Hi there,

I'm quite new to MTG and this is my first created deck. I used some cards I already own, so there might be some options for cards like lands and sorceries. If you have good ones, just tell me =)

With this deck I try to handle the most situations, as well as annoying my opponents. There are multiple lose conditions for the opponents like poison-counter, commanderdamage or just reducing life with an infinite combo.

Mechanics of the deck
(1) Ramp, so that the Commander can come out.
(2) Play some protecting Sliver, so I don't have to worry about counters or sth else.
(3) Depending on the opponent and situation chose the proper Sliver to get out of the deck with Sliver Overlord.
(4) Tutors and Graveyard removals shall round this deck up.

For me, it would be awesome to add Sliver Queen, since she enables easier and more powerful combinations. However she is a little bit to expensive for me.

Before I start let's say some words about the following combos:
(1) Ramping Slivers (mostly) needed on the battlefield.
(2) Mana variations and hence the repetition depend on Artefacts / Enchantments (Ench) like Heartstone or Mana Echoes.
(3) I expect Sliver Overlord to be on the battlefield, since you get the needed Sliver much more easily.
(4) I use 1 Mana Sliver for some combos like Virulent Sliver or Striking Sliver.
(5) With Mirror of the Forebears you can copy a Sliver with a stacking effect for combos.

Taking over a wanted creature
Needed: Amoeboid Changeling
Optional: Scuttling Sliver
Tap, make a creature an opponent controls having all creature types (also Sliver) and take control with the Sliver Overlord. If you have enough Mana, repeat this process by untapping with Scuttling Sliver's ability.

Landdestruction
Needed: Necrotic Sliver.
Two Possibilities:
(1) Create Sliver Tokens with Brood Sliver. Then use the Sliver Token to sacrifice them and destroy lands.
(2) Pulmonic Sliver. Beast Whisperer or Dormant Sliver (optional to take in account) for Carddraw. Use Virulent Sliver and Striking Sliver to create a combo with tapping (for Mana), sacrificing (for destroying things), putting on top of the library and carddrawing.

Getting stronger and stronger Sliver while reducing opponents life
Needed: Psionic Sliver, Spiteful Sliver, Fungus Sliver
Optional: Lymph Sliver (Absorb 1), Scuttling Sliver (Untap), Crypt Sliver (Regenerate)
Use the ability from Psionic Sliver to deal DMG to a chosen Sliver itself, deal that much DMG in addition to a player with the ability from Spiteful Sliver and create a +1/+1 counter with Fungus Sliver's ability.
Reduce optional the DMG dealt to itself with Lymph Sliver. Untap that Sliver with Scuttling, so you can repeat this effect or heal it with the ability of the Crypt Sliver.

"When enters the battlefield"-Infinite combo
Needed: Pulmonic Sliver, Virulent Sliver, Striking Sliver, Beast Whisperer (or take Dormant Sliver optional into account), Cloudshredder Sliver (Haste), Basal Sliver (Mana), Manawelft Sliver or Gemhide Sliver
Optional: Lavabelly Sliver (1 DMG to opponent, 1 Life for you), Harmonic Sliver (Destroy artefact or enchantment. Note: be careful, if your opponents have no more, you have to sacrifice your own), Door of Destinies (megastrong Sliver with a huge amount of +1/+1), Mana Echoes (endless colorless mana. Note: generate colored mana with tapping your Sliver.)
Combo:
(1) Play Virulent Sliver (or Striking, doesn't matter).
(2) Tap, generate red Mana.
(3) Sacrifice Virulent Sliver and generate 2 black Mana. Virulent Sliver goes on top of your library. Manacounter (MC): 2 B / 1 R
(4) Play Striking Sliver and draw a card (Guess what: it's the Virulent Sliver). MC: 2 B
(5) Tap, generate green Mana. MC: 2B / 1 G
(6) Sacrifice Striking Sliver and generate 2 black Mana. Striking Sliver goes on top of your library. MC: 4 B / 1 G
(7) Repeat from (1).
As Beast Whisperer is not a Sliver it can be hard to get him (I have to get Dormant). That's why Mnemonic Sliver can be played, so you can draw a card. No Mana will be generated that way (except you have Heartstone or Mana Echoes on the battlefield).

Again: If you have any suggestions about improving, please leave me a comment.