Create a Commander.

[Kaworu, the Fifth Child]

I concur

[FlickerYourOwnIdentity]

Nimar, the Vile Tactician   {B}{B}{U}
Legendary Creature - Human

Shroud
When Nimar, the Vile Tactician the enters the battlefield, secretly choose a player.
{B}{B}{U}{2}:  Reveal the chosen player.  Until the beginning of your next upkeep, all creatures must attack the chosen player if able.  You may only activate this ability during your first main phase.

"Some say my methods are that of a coward, and I agree with them.  For the coward is the one to survive the fight."
[1/1]

[FlickerYourOwnIdentity]

Kirack, the Spreader of Chaos    {B}{B}{B}{4}
Legendary Creature - Demon

At the beginning of your upkeep, randomly choose a player.  That player draws 3 cards, and loses 6 life.
At the beginning of each combat phase, randomly choose a player.  That player's creature(s) gain +2/+2 until the end of the turn, and that player loses 6 life.
At the beginning of your end step, each player discards a card at random.

"Trust only makes the world more chaotic."
[6/6]

[DimirOverlord1300]

Nimar, the Vile Tactician   {B}{B}{U}
Legendary Creature - Human

Shroud
When Nimar, the Vile Tactician the enters the battlefield, secretly choose a player.
{B}{B}{U}{2}:  Until the beginning of your next upkeep, all creatures must attack the chosen player if able.  You may only activate this ability during your first main phase.

"Some say my methods are that of a coward, and I agree with them.  For the coward is the one to survive the fight."
[1/1]

Wait but if you secretly choose a player how do your opponents know who they have to attack?

[FlickerYourOwnIdentity]

There it got edited, is that better?

[The1337Magician]

Sliver King                                {W}{U}{B}{R}{G}
Legendary Creature -- Sliver
{W}{U}{B}{R}{G}: Gain control of target creature. It becomes a Sliver in addition to its other creature types. It gains "Sliver creatures you control gain all activated abilities of this creature."
                                                                      7/7

[FlickerYourOwnIdentity]

Shieval, Dragon of the Waxing Moon  {U}{U}{5}
Legendary Creature - Dragon

Flying
At the beginning of your upkeep, put a flood counter on target land.
As long as Shieval, Dragon of the Waxing Moon is on the battlefield, lands with flood counters are Islands.
Shieval, Dragon of the Waxing Moon's power and toughness is equal to the number of islands on the battlefield.
"Push and pull; push or pull; pull."
*/*

[Skyshadow731]

Shieval, Dragon of the Waxing Moon  {U}{U}{5}
Legendary Creature - Dragon

Flying
At the beginning of your upkeep, put a flood counter on target land.
As long as Shieval, Dragon of the Waxing Moon is on the battlefield, lands with flood counters are Islands.
Shieval, Dragon of the Waxing Moon's power and toughness is equal to the number of islands on the battlefield.
"Push and pull; push or pull; pull."
*/*

This is actually really good, it would get so much hate huh

[FlickerYourOwnIdentity]

Hirashmu, Dragon of Shaming Light  {W}{W}{W}{3}
Legendary Creature - Dragon

Flying
Creatures do not untap during their controller's upkeep.
{3}: Untap target creature, any player may activate this ability, each player an only activate this ability once per turn.
Hirashmu, Dragon of Shaming Light's power and toughness is equal to the number of tapped creatures.

"Witness your sins, and tremble with guilt that you hide away from the judgemental light."
*/*+1

[LordJanova]

Hirashmu, Dragon of Shaming Light  {W}{W}{W}{3}
Legendary Creature - Dragon

Flying
Creatures do not untap at the beginning of their controller's upkeep.
{3}: Untap target creature, any player may activate this ability.
Hirashmu, Dragon of Shaming Light's power and toughness is equal to the number of tapped creatures.

"Witness your sins, and tremble with guilt that you hide away from the judgemental light."
*/*+1

I think you should add a clause to the untap creature ability limiting it to once per creature per turn. Otherwise it could very easily be abused for filthy things. Just think about what a {Krenko, Mob Boss} deck could do with 15 goblins out and 9 mana. If they have anything that gives goblins or creatures haste, of which there is a lot in red, they could swing out that turn with 120 goblins. And if they manage to turn out infinite mana they now have infinite creatures as well.

[InfinitiveDivinity]

Hirashmu, Dragon of Shaming Light  {W}{W}{W}{3}
Legendary Creature - Dragon

Flying
Creatures do not untap at the beginning of their controller's upkeep.
{3}: Untap target creature, any player may activate this ability.
Hirashmu, Dragon of Shaming Light's power and toughness is equal to the number of tapped creatures.

"Witness your sins, and tremble with guilt that you hide away from the judgemental light."
*/*+1

I think you should add a clause to the untap creature ability limiting it to once per creature per turn. Otherwise it could very easily be abused for filthy things. Just think about what a {Krenko, Mob Boss} deck could do with 15 goblins out and 9 mana. If they have anything that gives goblins or creatures haste, of which there is a lot in red, they could swing out that turn with 120 goblins. And if they manage to turn out infinite mana they now have infinite creatures as well.

I could see an equal if not more disgusting scenario with elves.

[Spencer Addington]

Hirashmu, Dragon of Shaming Light  {W}{W}{W}{3}
Legendary Creature - Dragon

Flying
Creatures do not untap at the beginning of their controller's upkeep.
{3}: Untap target creature, any player may activate this ability.
Hirashmu, Dragon of Shaming Light's power and toughness is equal to the number of tapped creatures.

"Witness your sins, and tremble with guilt that you hide away from the judgemental light."
*/*+1

I think you should add a clause to the untap creature ability limiting it to once per creature per turn. Otherwise it could very easily be abused for filthy things. Just think about what a {Krenko, Mob Boss} deck could do with 15 goblins out and 9 mana. If they have anything that gives goblins or creatures haste, of which there is a lot in red, they could swing out that turn with 120 goblins. And if they manage to turn out infinite mana they now have infinite creatures as well.

With {mana echoes} you go infinite. God I love that card!

[FlickerYourOwnIdentity]

Hirashmu, Dragon of Shaming Light  {W}{W}{W}{3}
Legendary Creature - Dragon

Flying
Creatures do not untap at the beginning of their controller's upkeep.
{3}: Untap target creature, any player may activate this ability, each player an only activate this ability once per turn.
Hirashmu, Dragon of Shaming Light's power and toughness is equal to the number of tapped creatures.

"Witness your sins, and tremble with guilt that you hide away from the judgemental light."
*/*+1

Is this better?

[LordJanova]

Hirashmu, Dragon of Shaming Light  {W}{W}{W}{3}
Legendary Creature - Dragon

Flying
Creatures do not untap at the beginning of their controller's upkeep.
{3}: Untap target creature, any player may activate this ability, each player an only activate this ability once per turn.
Hirashmu, Dragon of Shaming Light's power and toughness is equal to the number of tapped creatures.

"Witness your sins, and tremble with guilt that you hide away from the judgemental light."
*/*+1

Is this better?

Much better.

[DrainCleaner]

Hirashmu, Dragon of Shaming Light  {W}{W}{W}{3}
Legendary Creature - Dragon

Flying
Creatures do not untap at the beginning of their controller's upkeep.
{3}: Untap target creature, any player may activate this ability, each player an only activate this ability once per turn.
Hirashmu, Dragon of Shaming Light's power and toughness is equal to the number of tapped creatures.

"Witness your sins, and tremble with guilt that you hide away from the judgemental light."
*/*+1

Good thing my creatures still untap during my untap step! ;p