, : Target creature gains haste until end of turn.

: Put a +1/+1 counter on target Mount or Vehicle.

Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then if you control seven or more lands and/or Treefolk, create a 3/4 green Treefolk creature token with reach. (It can block creatures with flying.)

Target creature fights another target creature. (Each deals damage equal to its power to the other.)

Choose target opponent. Create two 1/1 colorless Thopter artifact creature tokens with flying. Then the chosen player loses X life and you gain X life, where X is the number of artifacts you control.

Flying
When this creature enters, destroy up to one target artifact or enchantment.

: Add .
As long as this creature is modified, it has ": Add ." (Equipment, Auras you control, and counters are modifications.)

Put a +1/+1 counter on target creature you control. It fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

Flash (You may cast this spell any time you could cast an instant.)
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Return target creature to its owner's hand.
Harmonize (You may cast this card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by , where X is its power. Then exile this spell.)

Lifelink
When this creature enters, it deals damage equal to the number of Swamps you control to any target.

Whenever this creature becomes tapped, you may discard a card. If you do, draw a card.

Kicker (You may pay an additional as you cast this spell.)
Firebending Lesson deals 2 damage to target creature. If this spell was kicked, it deals 5 damage to that creature instead.

Whenever Agent Maria Hill becomes tapped to pay a teamwork cost, put a +1/+1 counter on her and draw a card.

When Madame Masque enters, she connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)
Whenever you draw your second card each turn, create a 2/1 black Villain creature token with menace. (It can't be blocked except by two or more creatures.)

Sneak
First strike
Whenever Shark Shredder deals combat damage to a player, put up to one target creature card from that player's graveyard onto the battlefield under your control. It enters tapped and attacking that player.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
I — Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
II — This Saga gains "Landfall — Whenever a land you control enters, create a 1/1 green Elf creature token."
III, IV — Elves you control get +1/+0 and gain vigilance until end of turn.

Enchant creature
Enchanted creature gets +2/+2 and has flying and vigilance. (Attacking doesn't cause it to tap.)

Whenever this creature saddles a Mount or crews a Vehicle during your main phase, that Mount or Vehicle gains flying until end of turn.

Sacrifice a creature: This creature gets +2/+2 until end of turn.