Flying
Discard this card: Exile up to two target cards from graveyards.

This land enters tapped.
: Add or .
: Until end of turn, this land becomes a 3/3 red and green Elemental creature with "Whenever this creature attacks, put a +1/+1 counter on it." It's still a land.

Whenever this creature or another creature you control enters, you gain life equal to that creature's toughness.

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional .

Whenever this creature enters or transforms into Ulrich of the Krallenhorde, target creature gets +4/+4 until end of turn.
At the beginning of each upkeep, if no spells were cast last turn, transform Ulrich of the Krallenhorde.

Domain — This spell costs less to cast for each basic land type among lands you control.
Flying
Each creature you control has vigilance if it's white, hexproof if it's blue, lifelink if it's black, first strike if it's red, and trample if it's green.

(: Add .)

: Exile a card from your hand face down. You may look at it for as long as it remains exiled.
: Return a card you own exiled with this artifact to your hand.
When you lose control of this artifact, put all cards exiled with this artifact into their owner's graveyard.

Whenever a creature you control with power 5 or greater enters, you may have this enchantment deal 5 damage to any target.

At the beginning of each player's draw step, if this artifact is untapped, that player draws an additional card.

All Slivers have ": Target player mills a card."

At the beginning of your upkeep, you may put a charge counter on this artifact.
: You may put a creature card with mana value equal to the number of charge counters on this artifact from your hand onto the battlefield.

(Gain the next level as a sorcery to add its ability.)
When this Class enters, create a 1/1 blue and red Otter creature token with prowess.
: Level 2
When this Class becomes level 2, return target instant or sorcery card from your graveyard to your hand.
: Level 3
Whenever you cast an instant or sorcery spell, create a 1/1 blue and red Otter creature token with prowess.

Indestructible
Equipped creature gets +3/+3 and has vigilance and ", Sacrifice this creature: Add three mana of any one color."
Equip

Return target creature card from your graveyard to the battlefield.
Flashback—Sacrifice three creatures. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

You gain 3 life.
Storm (When you cast this spell, copy it for each spell cast before it this turn.)

Whenever you cast a spell that targets only a single artifact or creature you control, create a token that's a copy of that artifact or creature, except it's not legendary.

: Add one mana of any color.
, : Up to X target creatures you control get +1/+0 and gain indestructible until end of turn, where X is the number of Bobbleheads you control as you activate this ability. Activate only as a sorcery.

: Add .
: Add or . This land deals 1 damage to you.

Legendary creatures you control get +X/+X, where X is the number of legendary creatures you control.
Whenever you cast a legendary spell from your hand, exile cards from the top of your library until you exile a legendary nonland card with lesser mana value. You may cast that card without paying its mana cost. Put the rest on the bottom of your library in a random order.