This creature can't attack unless defending player controls an Island.
This creature can't be blocked except by blue creatures.
When you control no Islands, sacrifice this creature.

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

, Sacrifice a nontoken permanent: Draw a card.

When this creature enters, sacrifice it unless you discard a land card.

Enchant creature
Enchanted creature gets +1/+1 for each card in your hand.

When this creature enters, you may pay . If you do, search your library for a card named Llanowar Sentinel, put that card onto the battlefield, then shuffle.

Whenever this creature attacks and isn't blocked, you may put the top creature card of defending player's graveyard onto the battlefield under your control. If you do, this creature assigns no combat damage this turn.

Artifact and enchantment spells your opponents cast cost more to cast.
Sacrifice this enchantment: Destroy target artifact or enchantment.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
At the beginning of your draw step, destroy each creature with mana value equal to the number of age counters on this enchantment. They can't be regenerated.

Exile the top creature card of your graveyard: this creature gets +2/+2 until end of turn.

Return target instant or sorcery card from your graveyard to your hand.

First strike
: Tap target creature blocking this creature.

When this creature enters, sacrifice it unless you discard a creature card.

: Put a -1/-1 counter on this creature and a -1/-1 counter on target creature.

Whenever this creature attacks, untap all creatures defending player controls.

: Draw a card. Any player may activate this ability but only during their draw step.

Flying
Pay 1 life: Regenerate this creature.

: Target creature loses flying until end of turn.
Sacrifice this enchantment: It deals 2 damage to each creature with flying.

Creatures you control have haste. (They can attack and as soon as they come under your control.)

Whenever a land an opponent controls is tapped for mana, tap all lands that player controls that could produce any type of mana that land could produce.

Each creature you control can't be blocked by more than one creature.

When this creature dies, it deals 2 damage to target creature.

Whenever this creature attacks and isn't blocked, you may draw a card. If you do, this creature assigns no combat damage this turn.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

When this creature dies, each player sacrifices a land of their choice.

Each player discards any number of cards, then draws that many cards.
Draw a card.

Flying
Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

Regenerate target creature. You gain control of that creature if it regenerates this way.

Flying (This creature can't be blocked except by creatures with flying or reach.)
When this creature attacks or blocks, sacrifice it at end of combat.

You can't cast creature spells.

: Switch target creature's power and toughness until end of turn.

As an additional cost to cast this spell, exile X creature cards from your graveyard.
Haunting Misery deals X damage to target player or planeswalker.

This creature attacks each combat if able.

When this creature dies, each player may search their library for a card and put that card into their hand. Then each player who searched their library this way shuffles.

, : Target creature phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before its controller untaps during their next untap step.)

, : Until end of turn, you may cast instant and sorcery spells from the top of your graveyard. If a spell cast this way would be put into a graveyard, exile it instead.