Decanter of Endless Water

You have no maximum hand size.
{T}: Add one mana of any color.

Sol Ring

Thought Vessel

You have no maximum hand size.
{T}: Add {C}.

Arcanis the Omnipotent

{T}: Draw three cards.
{2}{U}{U}: Return Arcanis to its owner's hand.

Island

Reliquary Tower

Patriar's Seal

{T}: Add one mana of any color.
{1}, {T}: Untap target legendary creature you control.

Homunculus Horde

Whenever you draw your second card each turn, create a token that's a copy of this creature.

Dictate of Kruphix

Flash (You may cast this spell any time you could cast an instant.)
At the beginning of each player's draw step, that player draws an additional card.