Cumulative upkeep—Sacrifice a creature. (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.)

When you have 30 or more life, flip Rune-Tail.

Your opponents can't gain life.
−2: Create a 1/1 red Devil creature token with "When this token dies, it deals 1 damage to any target."

First strike
, : Attacking creatures gain first strike until end of turn.

When this creature enters, look at the top two cards of your library. Put one of them into your hand and the other on the bottom of your library.

Put target creature on top of its owner's library.

Whenever a creature you control enters, you may destroy target artifact or enchantment.

When this creature enters, destroy target artifact.

Return target creature to its owner's hand.
Draw a card.

Until your next turn, your life total can't change and you gain protection from everything. All permanents you control phase out. (While they're phased out, they're treated as though they don't exist. They phase in before you untap during your untap step.)
Exile Teferi's Protection.

Flying
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Fiery Justice deals 5 damage divided as you choose among any number of targets. Target opponent gains 5 life.

Add .

Flying
At the beginning of your end step, if an opponent lost life this turn, put a +1/+1 counter on this creature. (Damage causes loss of life.)

Dragon's Presence deals 5 damage to target attacking or blocking creature.

Draw two cards, then discard a card. Then if an opponent has more cards in hand than you, return Pulse of the Grid to its owner's hand.

: This creature gets +1/+0 until end of turn.

Choose one or both —
• Counter target creature spell.
• Return target creature card from your graveyard to your hand.

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.

Enchant player
Creatures enchanted player controls attack each combat if able.

You gain 3 life.
Draw a card.

Enchant land
Enchanted land has ": Create a 1/1 green Squirrel creature token."

Counter target spell unless its controller pays .
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, scry 2. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Cumulative upkeep or (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.)
When this creature dies, create a 1/1 white Bird creature token with flying for each age counter on it.

, Sacrifice this creature: Destroy target creature blocking it.
Sacrifice a creature named Feral Shadow, a creature named Breathstealer, and this creature: Search your library for a card named Spirit of the Night, put that card onto the battlefield, then shuffle.

When this creature enters, secretly choose an opponent.
Reveal the player you chose: Exile target creature that's attacking you if it's controlled by the chosen player. Activate only once.

Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

At the beginning of your upkeep, create a 1/1 red Goblin creature token with haste.
Goblin creatures attack each combat if able.

Ferocious — This creature enters with a +1/+1 counter on it if you control a creature with power 4 or greater.

When this creature enters, you may return target card from your graveyard to your hand.

This creature can't be blocked.
When this creature enters, you gain 4 life.
When this creature enters, sacrifice it unless was spent to cast it.

Whenever one or more creatures you control with mana value 3 or less enter, draw a card. This ability triggers only once each turn.

Enchant creature
Enchanted creature gets +2/+2, has intimidate, and can't attack you or planeswalkers you control. (A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Sisay gets +1/+1 for each color among other legendary permanents you control.
: Search your library for a legendary permanent card with mana value less than Sisay's power, put that card onto the battlefield, then shuffle.

Target player discards two cards.

When this creature enters, you gain 2 life.
When this creature dies, draw a card.