(: Add or .)

Whenever Ragavan deals combat damage to a player, create a Treasure token and exile the top card of that player's library. Until end of turn, you may cast that card.
Dash (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Whenever an opponent draws a card, that player may pay . If the player doesn't, you create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

As long as this artifact is untapped, players can't untap more than one land during their untap steps.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
At the beginning of your upkeep, return target creature card from your graveyard to the battlefield.
At the beginning of each opponent's upkeep, that player sacrifices a creature of their choice.

Discard your hand, Sacrifice this artifact: Add three mana of any one color. Activate only as an instant.

Destroy all lands.

Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
: Skithiryx gains haste until end of turn.
: Regenerate Skithiryx.

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.

Vigilance
Other creatures you control get +2/+2.
Creatures your opponents control get -2/-2.

Flying, hexproof from multicolored
Whenever Niv-Mizzet deals combat damage to a player, it deals X damage to any target, target player draws X cards, and you gain X life, where X is the number of different color pairs among permanents you control that are exactly two colors.

, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

, Sacrifice this artifact: Add one mana of any color.

Indestructible
When The One Ring enters, if you cast it, you gain protection from everything until your next turn.
At the beginning of your upkeep, you lose 1 life for each burden counter on The One Ring.
: Put a burden counter on The One Ring, then draw a card for each burden counter on The One Ring.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)
If one or more tokens would be created under your control, those tokens plus that many 1/1 green Squirrel creature tokens are created instead.
, Sacrifice X Squirrels: Target creature gets +X/-X until end of turn.

First strike

At the beginning of each player's upkeep, destroy target nonartifact creature that player controls of their choice. It can't be regenerated.

: Add one mana of any color.
, : Draw X cards, where X is the number of Bobbleheads you control.

Double strike
When this creature enters, it deals 4 damage divided as you choose among any number of target creatures and/or planeswalkers.
Evoke—Exile a red card from your hand.