Sacrifice this creature: It deals 2 damage to any target.

Whenever this creature is dealt damage, you may create that many 1/1 green Insect creature tokens.

: Target unblocked attacking creature becomes blocked. Activate only during combat after blockers are declared. (This ability works on creatures that can't be blocked.)

Whenever this creature attacks, put a +1/+1 counter on target creature of defending player's choice.

Choose a card type. Target opponent reveals their hand. Blood Oath deals 3 damage to that player for each card of the chosen type revealed this way. (Artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery are card types.)

Defender (This creature can't attack.)
, : This creature deals 1 damage to any target.

Create a 1/1 green Saproling creature token for each card in your hand.

Whenever this creature blocks or becomes blocked by a nonblack creature, destroy that creature at end of combat.

Defender (This creature can't attack.)
, : Target player discards a card. Activate only as a sorcery.

Defender (This creature can't attack.)
: Target creature gets +0/+4 until end of turn.

If an opponent controls a Mountain and you control an Island, you may cast this spell without paying its mana cost.
Flying

When this creature enters, each other player may search their library for a land card and put that card onto the battlefield. Then each player who searched their library this way shuffles.

Sorcery spells cost more to cast.

Whenever this creature is dealt combat damage, you gain that much life.

, Sacrifice this creature: Create a 1/1 green Insect creature token with flying named Butterfly at the beginning of the next end step.

Whenever a creature you control dies, you may pay . If you do, reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest into your graveyard.

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

: Target creature gets +1/+1 and gains flying, first strike, and trample until end of turn.

, : Flip a coin. If you win the flip, destroy target creature an opponent controls. If you lose the flip, destroy target creature you control unless you pay and repeat this process.

: This creature deals 1 damage to each creature with flying and each player. Any player may activate this ability.

At the beginning of each player's upkeep, that player may put a +1/+1 counter on target creature of their choice.

When this creature enters, target opponent loses 2 life and you gain 2 life.

You may exile a green card from your hand rather than pay this spell's mana cost.
Flash
Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

When this creature enters, each other player may put a creature card from their hand onto the battlefield.

When this creature attacks or blocks, put it on top of its owner's library at end of combat.

Search your library for a permanent card with the same name as target nontoken creature, put that card onto the battlefield, then shuffle.

At the beginning of your end step, if you didn't play a land this turn, you may draw a card.

: This creature gains trample until end of turn.

Whenever a creature dies, put a charge counter on this enchantment.
At the beginning of your first main phase, add for each charge counter on this enchantment.

When a creature enters, sacrifice this artifact and create X 2/2 green Monkey creature tokens, where X is that creature's mana value.

Each creature deals damage to itself equal to its power.

Flying
, : Search your library for a Rebel permanent card with mana value 6 or less, put it onto the battlefield, then shuffle.

, : Reveal a creature card in your hand. Search your library for a card with the same name as that card, reveal it, put it into your hand, then shuffle.

Creatures you control have fear. (They can't be blocked except by artifact creatures and/or black creatures.)

Shroud (This creature can't be the target of spells or abilities.)

Trample
At the beginning of your upkeep, you may put a +1/+1 counter on this creature.