Double strike

Eternalize {3}{W}{W} ({3}{W}{W}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Cat with no mana cost. Eternalize only as a sorcery.)

Whenever a creature enters the battlefield under your control, you gain 1 life.

Creatures you control have vigilance.

+1: You gain 3 life.

-2: Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control.

{T}: Add one mana of any color in your commander's color identity.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

When Basri's Acolyte enters the battlefield, put a +1/+1 counter on each of up to two other target creatures you control.

Whenever a creature you control attacks, you may put a quest counter on Beastmaster Ascension.

As long as Beastmaster Ascension has seven or more quest counters on it, creatures you control get +5/+5.

Changeling (This card is every creature type.)

As Bloodline Pretender enters the battlefield, choose a creature type.

Whenever another creature of the chosen type enters the battlefield under your control, put a +1/+1 counter on Bloodline Pretender.

Blossoming Sands enters the battlefield tapped.

When Blossoming Sands enters the battlefield, you gain 1 life.

{T}: Add {G} or {W}.

Backup 1 (When this creature enters the battlefield, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.)

Whenever this creature attacks, tap target artifact or creature an opponent controls.

Haste (This creature can attack and {T} as soon as it comes under your control.)

Whenever Bolt Hound attacks, other creatures you control get +1/+0 until end of turn.

{G}{W}: Bronzehide Lion gains indestructible until end of turn.

When Bronzehide Lion dies, return it to the battlefield. It's an Aura enchantment with enchant creature you control and "{G}{W}: Enchanted creature gains indestructible until end of turn," and it loses all other abilities.

Choose one --

• Cabaretti Charm deals damage equal to the number of creatures you control to target creature or planeswalker.

• Creatures you control get +1/+1 and gain trample until end of turn.

• Create two 1/1 green and white Citizen creature tokens.

When Cabaretti Courtyard enters the battlefield, sacrifice it. When you do, search your library for a basic Mountain, Forest, or Plains card, put it onto the battlefield tapped, then shuffle and you gain 1 life.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add one mana of any color in your commander's color identity.

Sacrifice Commander's Sphere: Draw a card.

Mutate {2}{W}{W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Lifelink

Whenever this creature mutates, create two 1/1 white Cat creature tokens with lifelink.

Dawn of a New Age enters the battlefield with a hope counter on it for each creature you control.

At the beginning of your end step, remove a hope counter from Dawn of a New Age. If you do, draw a card. Then if Dawn of a New Age has no hope counters on it, sacrifice it and you gain 4 life.

Flash

Creatures you control get +2/+2.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

{T}: Add one mana of any color that a land an opponent controls could produce.

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Vigilance, lifelink

At the beginning of your upkeep, if you have 40 or more life, you win the game.

Other Cats you control get +1/+1 and have protection from Dogs.

Whenever one or more Cats you control deal combat damage to a player, destroy up to one target artifact or enchantment that player controls.

{3}{G}{W}: Monstrosity 1. (If this creature isn't monstrous, put a +1/+1 counter on it and it becomes monstrous.)

As long as Fleecemane Lion is monstrous, it has hexproof and indestructible.

Commander creatures you own have "Whenever you cast a spell that shares a creature type with this creature, draw a card. This ability triggers only once each turn."

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

{1}, {T}: Add {R}{G}.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)

Destroy all nontoken creatures.

Whenever a creature enters the battlefield under your control, Impact Tremors deals 1 damage to each opponent.

Commander creatures you own have "Creature tokens you control get +2/+2."

Flash

As Instruments of War enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +1/+1.

Creature tokens you control get +1/+1 and have vigilance.

First strike

{3}{W}{W}: Attacking creatures you control get +X/+X until end of turn, where X is the number of attacking creatures.

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

Whenever Jedit Ojanen of Efrava attacks or blocks, create a 2/2 green Cat Warrior creature token with forestwalk.

Creatures you control get +1/+0 and have vigilance as long as you control three or more creatures.

Creatures you control also get +1/+0 and have trample as long as you control six or more creatures.

Creatures you control also get +1/+0 and have double strike as long as you control nine or more creatures.

If you would create one or more tokens, you may instead create that many 2/2 green Cat creature tokens with haste or that many 3/1 green Dog creature tokens with vigilance.

Jungle Shrine enters the battlefield tapped.

{T}: Add {R}, {G}, or {W}.

Companion -- Each creature card in your starting deck is a Cat, Elemental, Nightmare, Dinosaur, or Beast card. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.)

Vigilance

Each other creature you control that's a Cat, Elemental, Nightmare, Dinosaur, or Beast gets +1/+1 and has vigilance.

Other Cats you control get +2/+1.

Whenever Leonin Warleader attacks, create two 1/1 white Cat creature tokens with lifelink that are tapped and attacking.

{W}: Exile target card from a graveyard. If it was a permanent card, put a +1/+1 counter on Lion Sash.

Equipped creature gets +1/+1 for each +1/+1 counter on Lion Sash.

Reconfigure {2} ({2}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

First strike

Whenever Mirri, Weatherlight Duelist attacks, each opponent can't block with more than one creature this combat.

As long as Mirri, Weatherlight Duelist is tapped, no more than one creature can attack you each combat.

Changeling (This card is every creature type.)

{X}: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

Vigilance, trample

If one or more +1/+1 counters would be put on Mowu, Loyal Companion, that many plus one +1/+1 counters are put on it instead.

Choose one --

• Naya Charm deals 3 damage to target creature.

• Return target card from a graveyard to its owner's hand.

• Tap all creatures target player controls.

Other Dogs you control get +1/+1.

Whenever Pack Leader attacks, prevent all combat damage that would be dealt this turn to Dogs you control.

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Put a +1/+1 counter on each creature you control. You gain 1 life for each creature you control.

As long as it's your turn, creature tokens you control get +1/+4.

{3}{W}: Create a 1/1 white Soldier creature token.

Partner (You can have two commanders if both have partner.)

Pride Sovereign gets +1/+1 for each other Cat you control.

{W}, {T}, Exert Pride Sovereign: Create two 1/1 white Cat creature tokens with lifelink. (An exerted creature won't untap during your next untap step.)

When Pridemalkin enters the battlefield, put a +1/+1 counter on target creature you control.

Each creature you control with a +1/+1 counter on it has trample. (They can deal excess combat damage to the player or planeswalker they're attacking.)

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

{1}, Sacrifice Qasali Pridemage: Destroy target artifact or enchantment.

({T}: Add {G} or {W}.)

Radiant Grove enters the battlefield tapped.

As Rally the Ranks enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +1/+1.

When Rambunctious Mutt enters the battlefield, destroy target artifact or enchantment an opponent controls.

Other Cats you control get +1/+1 and have lifelink.

When Regal Caracal enters the battlefield, create two 1/1 white Cat creature tokens with lifelink.

Mutate {1}{R/W}{R/W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Whenever this creature mutates, other creatures you control get +2/+1 until end of turn.

Defender

{1}, Sacrifice Resolute Watchdog: Target creature you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Whenever you cast a Dog spell, create a 1/1 green Cat creature token.

Whenever you cast a Cat spell, create a 1/1 white Dog creature token.

{R}{G}{W}, {T}: Rin and Seri, Inseparable deals damage to any target equal to the number of Dogs you control. You gain life equal to the number of Cats you control.

Populate. Creatures you control gain indestructible until end of turn. (To populate, create a token that's a copy of a creature token you control.)

For each token you control, create a token that's a copy of that permanent.

Changeling (This card is every creature type.)

Creatures target player controls get +0/+1 and gain all creature types until end of turn.

Flying

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

Lieutenant -- As long as you control your commander, other creatures you control have melee.

{T}: Add {C}{C}.

Destroy target artifact or enchantment, then populate. (Create a token that's a copy of a creature token you control.)

When Supply Runners enters the battlefield, put a +1/+1 counter on each other creature you control.

Changeling (This card is every creature type.)

Whenever an opponent casts a spell, you may put a +1/+1 counter on Taurean Mauler.

Temple of Triumph enters the battlefield tapped.

When Temple of Triumph enters the battlefield, scry 1.

{T}: Add {R} or {W}.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Until end of turn, creatures you control get +5/+5 and gain first strike, trample, and lifelink.

Untap all creatures you control.

Draw a card.

When Trusty Retriever enters the battlefield, choose one --

• Put a +1/+1 counter on Trusty Retriever.

• Return target artifact or enchantment card from your graveyard to your hand.

Creatures you control gain indestructible until end of turn.

Addendum -- If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn.

As Unclaimed Territory enters the battlefield, choose a creature type.

{T}: Add {C}.

{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.

Flash

When Whitemane Lion enters the battlefield, return a creature you control to its owner's hand.

Wind-Scarred Crag enters the battlefield tapped.

When Wind-Scarred Crag enters the battlefield, you gain 1 life.

{T}: Add {R} or {W}.