Sacrifice

As an additional cost to cast this spell, sacrifice a creature.
Add an amount of {B} equal to the sacrificed creature's mana value.

Sol Ring

Gilded Lotus

Mirrormade

You may have this enchantment enter as a copy of any artifact or enchantment on the battlefield.

Dark Ritual

Mind Stone

{T}: Add {C}.
{1}, {T}, Sacrifice this artifact: Draw a card.

Exsanguinate

Each opponent loses X life. You gain life equal to the life lost this way.

Thran Dynamo

Dimir Signet

Doc Ock's Henchmen

Flash
Whenever this creature attacks, it connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Windfall

Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

Skirge Familiar

Doc Ock's Tentacles

Whenever a creature you control with mana value 5 or greater enters, you may attach this Equipment to it.
Equipped creature gets +4/+4.
Equip {5}

Doc Ock, Evil Inventor

At the beginning of combat on your turn, target noncreature artifact you control becomes an 8/8 Robot Villain artifact creature in addition to its other types.

Worn Powerstone

This artifact enters tapped.
{T}: Add {C}{C}.

Lady Octopus, Inspired Inventor

Whenever you draw your first or second card each turn, put an ingenuity counter on Lady Octopus.
{T}: You may cast an artifact spell from your hand with mana value less than or equal to the number of ingenuity counters on Lady Octopus without paying its mana cost.

Doc Ock, Sinister Scientist

As long as there are eight or more cards in your graveyard, Doc Ock has base power and toughness 8/8.
As long as you control another Villain, Doc Ock has hexproof. (He can't be the target of spells or abilities your opponents control.)

Flying Octobot

Flying
Whenever another Villain you control enters, put a +1/+1 counter on this creature. This ability triggers only once each turn.

Doctor Octopus, Master Planner

Other Villains you control get +2/+2.
Your maximum hand size is eight.
At the beginning of your end step, if you have fewer than eight cards in hand, draw cards equal to the difference.

Energy Tap

Tap target untapped creature you control. If you do, add an amount of {C} equal to that creature's mana value.