Black creatures can't attack or block.

Flying
Creatures can't attack you unless their controller pays for each creature they control that's attacking you.

Vigilance, deathtouch, haste
Questing Beast can't be blocked by creatures with power 2 or less.
Combat damage that would be dealt by creatures you control can't be prevented.
Whenever Questing Beast deals combat damage to an opponent, it deals that much damage to target planeswalker that player controls.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
When this creature enters, you may search your library for a Merfolk card, reveal it, then shuffle and put that card on top.

This spell costs less to cast for each creature you attacked with this turn.
When this creature enters, draw a card.

Put a -1/-1 counter on target creature.
Draw a card.

Solar Blast deals 3 damage to any target.
Cycling (, Discard this card: Draw a card.)
When you cycle this card, you may have it deal 1 damage to any target.

At the beginning of your upkeep, create X 2/2 green Wolf creature tokens, where X is the number of your opponents with four or more cards in hand.

Whenever you win a coin flip, put a luck counter on this enchantment.
At the beginning of your upkeep, if this enchantment has ten or more luck counters on it, you win the game.

When this creature enters, destroy target creature with defender.

You may return three Islands you control to their owner's hand rather than pay this spell's mana cost.
Counter target spell.

White spells you cast cost less to cast.
Blue spells you cast cost less to cast.
Spells your opponents cast cost more to cast.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

Flying
When this creature enters, create two 1/1 green and blue Snake creature tokens.
When this creature enters, sacrifice it unless was spent to cast it.

This creature enters with X +1/+1 counters on it, where X is the number of instant and sorcery cards in all graveyards.
, Remove a +1/+1 counter from this creature: Draw a card, then discard a card.

Each creature you control that's a Food or a Golem gets +2/+2 and has trample.
Whenever another nontoken creature you control dies, you may exile it. If you do, create a token that's a copy of that creature, except it's a 1/1 Food Golem artifact creature in addition to its other types and it has ", , Sacrifice this token: You gain 3 life."

, : Tap target artifact, creature, or land.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Menace

Flying (This creature can't be blocked except by creatures with flying or reach.)
When this creature dies, you may draw a card.

For each player, choose friend or foe. Each friend searches their library for a land card, puts it onto the battlefield tapped, then shuffles. Each foe sacrifices an artifact or enchantment of their choice.

Enchant creature
Enchanted creature gets +2/+2 and has lifelink.

Create a 3/3 green Elephant creature token.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

This creature gets +1/+0 for each artifact you control.
Magecraft — Whenever you cast or copy an instant or sorcery spell, create a Treasure token. (It's an artifact with ", Sacrifice this token: Add one mana of any color.")

+1: Tap target permanent, then untap another target permanent.
−2: Ral Zarek deals 3 damage to any target.
−7: Flip five coins. Take an extra turn after this one for each coin that comes up heads.

Flying

Haste
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When this creature enters, it deals 3 damage to target player or planeswalker.

Return target artifact card from your graveyard to the battlefield.

Attacking creatures you control get +1/+0.

As this enchantment enters, choose a creature type.
: Put a divinity counter on target creature you control of the chosen type.
Each creature you control with a divinity counter on it has indestructible.

At the beginning of your end step, if you control a creature with power 5 or greater, you may draw a card.
: Add .

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)
Tap up to two target creatures. Put a stun counter on either of them. Then put a stun counter on either of them. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Counter target spell unless its controller pays .
Amass Zombies 2. (Put two +1/+1 counters on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)

When this creature dies, you draw X cards and you lose X life, where X is the number of creature cards in target player's graveyard.

Trample
When this creature enters, you become the monarch.