Double strike
Undying (When this creature 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.)

When a creature dealt damage by this creature this turn dies, flip this creature.

Whenever this creature attacks, create a 1/1 white Bird creature token with flying that's tapped and attacking.

Equipped creature gets +2/+1.
Equip

, Sacrifice this creature: Counter target spell.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Tap up to three target creatures without flying.

Worldsoul's Rage deals X damage to any target. Put up to X land cards from your hand and/or graveyard onto the battlefield tapped.

You have no maximum hand size.
At the beginning of your upkeep, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")
Whenever you draw your second card each turn, put two +1/+1 counters on Morska.

Visit — You have five seconds to stack dice on top of one another. If you stack at least five dice, claim the prize
Prize — Create a 1/1 green Squirrel creature token for each die you stacked above the fourth, then sacrifice this Attraction and open an Attraction.

Flying
Whenever this creature or another creature you control with flying dies, return another target creature card with lesser mana value from your graveyard to the battlefield.

Compleated ({G/W/P} can be paid with , , or 2 life. If life was paid, this planeswalker enters with two fewer loyalty counters.)
+1: Reveal the top card of your library. If it's a creature or planeswalker card, put it into your hand. Otherwise, you may put it on the bottom of your library.
−3: Distribute three +1/+1 counters among up to three target creatures. They gain vigilance until end of turn.
−6: You get an emblem with "Whenever you cast a creature or planeswalker spell, target opponent gets two poison counters."

Flying, protection from red

Haste
This creature enters with a +1/+1 counter on it for each other spell cast this turn.

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

All targeted spells and abilities cost less and have their targets chosen randomly.

Trample
When this creature enters, you may put a name sticker on it. Put a +1/+1 counter on it for each unique vowel on that sticker. (The vowels are A, E, I, O, U, and Y.)

: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Destroy target nonland permanent.
II — Mill three cards.
III — You may discard a card. When you do, return target creature or land card from your graveyard to your hand.

When this creature enters, target creature an opponent controls gets -1/-1 until end of turn.