Oni of Wild Places

Haste
At the beginning of your upkeep, return a red creature you control to its owner’s hand.

Slipstream Eel

Slipstream Eel can’t attack unless defending player controls an Island.
Cycling (, Discard this card: Draw a card.)

Reprocess

Sacrifice any number of artifacts, creatures, and/or lands. Draw a card for each permanent sacrificed this way.

Naked Singularity

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
If tapped for mana, Plains produce , Islands produce , Swamps produce , Mountains produce , and Forests produce instead of any other type.

Mana Matrix

Instant and enchantment spells you cast cost less to cast.

Mana Vault

Mana Vault doesn’t untap during your untap step.
At the beginning of your upkeep, you may pay . If you do, untap Mana Vault.
At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you.
: Add .

Steam Catapult

: Destroy target tapped creature. Activate only during your turn, before attackers are declared.

Cyclone

At the beginning of your upkeep, put a wind counter on Cyclone, then sacrifice Cyclone unless you pay for each wind counter on it. If you pay, Cyclone deals damage equal to the number of wind counters on it to each creature and each player.

Flying Carpet

, : Target creature gains flying until end of turn.