Gravedigger

This land enters tapped. As it enters, choose a color other than black. T: Add B or one mana of the chosen color.

Return target creature to its owner's hand. Draw a card.

Whenever you draw your second card each turn, this creature gains flying until end of turn.

T: Target player draws a card, then discards a card.

This land enters tapped. As it enters, choose a color other than white. T: Add W or one mana of the chosen color.

4, T: Create a 1/1 colorless Thopter artifact creature token with flying.

When this enchantment enters, it deals 3 damage to any target. When a Cartouche you control enters, return this enchantment to its owner's hand.

This land enters tapped. As it enters, choose a color other than blue. T: Add U or one mana of the chosen color.