Each land is a Swamp in addition to its other land types.

Your opponents can't cast spells with even mana values. (Zero is even.)
Your opponents can't block with creatures with even mana values.

(: Add or .)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
Whenever a Human deals damage to you, destroy it.
Other non-Human creatures you control get +1/+1 and have undying. (When a creature with undying dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

First strike
Dinosaur spells you cast have prowl . (You may cast a spell for its prowl cost if you dealt combat damage to a player this turn with a creature with any of its creature types.)

Hurricane deals X damage to each creature with flying and each player.

: Add one mana of any color among legendary creatures and planeswalkers you control.

When this creature enters, each opponent loses X life, where X is your devotion to black. You gain life equal to the life lost this way. (Each in the mana costs of permanents you control counts toward your devotion to black.)

Sliver creatures you control have "When this creature enters, you may exile target creature an opponent controls until this creature leaves the battlefield."

Return all artifacts target player owns to their hand.

You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost.
Counter target spell.

, Pay 1 life, Sacrifice this land: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

Hall of the Bandit Lord enters tapped.
, Pay 3 life: Add . If that mana is spent on a creature spell, it gains haste.

Whenever a player casts a blue spell, you may pay . If you do, you gain 1 life.

You may exile a black card with mana value X from your hand rather than pay this spell's mana cost.
Target creature gets -X/-X until end of turn.

Enchant creature
All damage that would be dealt to you is dealt to enchanted creature instead.

You can bargain any permanent instead of just artifacts, enchantments, and tokens.
Whenever you cast a spell, if it was bargained, copy that spell. You may choose new targets for the copy.

: Add two mana in any combination of , , and/or .
, : Draw two cards, then discard a card.

Draw three cards, then put two cards from your hand on top of your library in any order.

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