Can you tell me what to change in my Magic The Gathering Deck? :)?

Question

HI!!! Im a magic the gathering lvr, and I've created a casual deck for fun. No, it's not a stellar turn 1 winner. Just casual play vs friends

Can you help me with some suggested adds? Changes?

The damage engine

POOLING VENOM (1B) Land Enchant - When enchanted land is tapped for Mana, it's controller takes 2 damage

PSYCHIC VENOM (1U) Land Enchant - (same as pooling)

COPY ENCHANT (2UU) - Copy Target Enchantment

Then there are the "TAP" cards to force them to tap their lands

MANA SHORT (2U) - Tap all target players land, and empty thier mana pool

Underrated because it can be played during the players upkeep phase. No mana for them!

GIGADROWSE (U) - Tap target permanent. Replicate (U) Copy for each replicate paid

MIND GAMES (U) - Tap or Untap target permanent. 2U Buyback

So what else? (artifact, blue or black only pls)

Creatures?

Speed?

Scrye?

Draw Cards?

Alternate mana sources?

Permission?

Global Enchants?

Creature Destruction?

THANKS ALL!

Answer 1

I can't believe I'm saying this... but TWIDDLE!!! Taps a creature, artifact, or land for U.  Steve mentioned Toils of Night and Day which is also a good card to use.  Mana Short empties your opponent's mana pool and taps all their lands for 2U.  Not bad, in my opinion.

Gulf Squid (Prophecy) would also be good since it taps all your opponent's lands when it comes into play.  If you're going to run Pestermite, you might also want to run Mistblind Clique.  What happens is that you Champion the Pestermite for Mistblind Clique to tap all lands an opponent controls, and when the Clique dies, the Pestermite comes back into play and you can tap a land again. MWAHAHA!

...that's all I got.

Answer 2

Mana Web would be helpful and have some of the synergy you are looking for.  "Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that can produce any type of mana that land could produce".

this would double tap for dual lands, but would not help when you use Mind Games, etc. to force tap them, as it's not for mana.

You might also look at Demonic Tutor's to find your Enchants.

The new black Wrath of God "Damnation" would be good creature control, or some sort of mass unsummon for blue.

Boomerrang would help protect your enchants, but you need UU mana, and a counterspell is just as effective (assuming you keep the mana).

Sol Rings will help you balance your mana curve, as well Dark Ritual for casting or buybacks.

Nice deck!  Keep em coming!

Depending on how slow this deck makes your oponent

Answer 3

go with some Pestermites (Flash blue faerie, tap target permanent) some Megrims and cards that make the other player discard.

Answer 4

You probably want to add in white.  Teferi's Moat will stop a certain color from attacking you.  Also, Three Dreams will search for 3 Auras.

As for blue cards, Toils of Night and Day will let you do it twice.