mtg.wtf

Whenever a player casts a black spell, you may pay {3}. If you do, untap target permanent.

Song of the Ood — Noncreature spells have convoke.
Red-Eye — Whenever chaos ensues, for each opponent, goad up to one target creature that opponent controls. Until your next turn, those creatures can't become tapped unless they're being declared as attackers.

{T}: Add {C}.
{1}, {T}: Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.

Sunburst
Equipped creature gets +X/+X, where X is the number of charge counters on Opaline Bracers.
Equip {2}

{T}: Add one mana of any color.

Whenever you crank Optical Optimizer, until end of turn, target creature becomes an artifact in addition to its other types and gains "{T}: Draw a card."

Opulent Palace enters tapped.
{T}: Add {B}, {G}, or {U}.

{0}: Untap target attacking creature you control and remove it from combat.

Devoid
{2}, Put a card an opponent owns from exile into that player's graveyard: Draw a card, then discard a card.

{2}, {T}: Exile the top card of your library. Until end of turn, you may play that card. Put a brick counter on Oracle's Vault.
{T}: Exile the top card of your library. Until end of turn, you may play that card without paying its mana cost. Activate only if there are three or more brick counters on Oracle's Vault.

Oran-Rief, the Vastwood enters tapped.
{T}: Add {G}.
{T}: Put a +1/+1 counter on each green creature that entered this turn.

Ascend
{T}: Add {C}.
{T}, Sacrifice Orazca Relic: You gain 3 life and draw a card. Activate only if you have the city's blessing.

Permanents enter tapped.

{2}: Add one mana of any color.
Other noncreature artifacts are mono and continuous. (Each activated ability of mono artifacts costs an additional {T} to activate if its cost doesn't already include {T}. As long as a continuous artifact is tapped, it loses all abilities.)

You have hexproof.
If a creature would deal damage to you, prevent 1 of that damage.

At the beginning of your first main phase, add {C} for each land target opponent controls.

Orderly Plaza enters tapped.
{T}: Add {W} or {U}.

{1}, {T}, Sacrifice Origin Spellbomb: Create a 1/1 colorless Myr artifact creature token.
When Origin Spellbomb is put into a graveyard from the battlefield, you may pay {W}. If you do, draw a card.

Equipped creature gets +1/+1.
Whenever equipped creature dies, draw two cards.
Equip {1}

Creatures you control have reach.

{2}, {T}: Target opponent exiles the top card of their library. You may play that card this turn.

Flying

Flying
{T}: Add one mana of any color.

Whenever a creature you control deals combat damage to a player, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Whenever chaos ensues, target creature can't be blocked this turn.

Orochi Hatchery enters with X charge counters on it.
{5}, {T}: Create a 1/1 green Snake creature token for each charge counter on Orochi Hatchery.