Cleave {1}{U} (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)
Return target nonland permanent [you control] to its owner's hand.
{B}{B}
Dauthi Voidwalker
Creature - Dauthi Rogue
Shadow (This creature can block or be blocked by only creatures with shadow.)
If a card would be put into an opponent's graveyard from anywhere, instead exile it with a void counter on it.
{T}, Sacrifice Dauthi Voidwalker: Choose an exiled card an opponent owns with a void counter on it. You may play it this turn without paying its mana cost.
3 /
2
{X}{U}{U}
Displacement Wave
Sorcery
Return all nonland permanents with mana value X or less to their owners' hands.
{4}
Mystic Forge
Artifact
You may look at the top card of your library any time.
You may cast artifact spells and colorless spells from the top of your library.
{T}, Pay 1 life: Exile the top card of your library.
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Otawara, Soaring City
Legendary Land
{T}: Add {U}.
Channel -- {3}{U}, Discard Otawara, Soaring City: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.
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Sokenzan, Crucible of Defiance
Legendary Land
{T}: Add {R}.
Channel -- {3}{R}, Discard Sokenzan, Crucible of Defiance: Create two 1/1 colorless Spirit creature tokens. They gain haste until end of turn. This ability costs {1} less to activate for each legendary creature you control.
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Spire of Industry
Land
{T}: Add {C}.
{T}, Pay 1 life: Add one mana of any color. Activate only if you control an artifact.