This creature gets +1/+2 as long as you have one or fewer cards in hand.

Whenever this creature becomes blocked, defending player sacrifices a land of their choice.

Flash
Flying
When this creature enters, target creature an opponent controls gets -X/-0 until end of turn, where X is your devotion to blue.

Triple strike (This creature deals first-strike, regular, and last-strike combat damage.)

This creature enters with three +1/+1 counters on it.
Whenever this creature enters or attacks, create a number of 1/1 colorless Gnome artifact creature tokens equal to its power.
, Sacrifice another artifact: Put a +1/+1 counter on this creature.

When this artifact enters, scry 3.
Each spell you cast that's exactly three colors has replicate .

Exile the top three cards of your library face down. You may look at those cards for as long as they remain exiled. Until your next turn, you may play those cards. At the beginning of your next upkeep, put any of those cards you didn't play into your graveyard.

Search your library for a Forest card, put it onto the battlefield, then shuffle.

Whenever this creature or another creature you control leaves the battlefield without dying, put a +1/+1 counter on target creature you control.

: Add one mana of any color.

Changeling
: Add one mana of any color. Activate only once each turn.

As Three Tree City enters, choose a creature type.
: Add .
, : Choose a color. Add an amount of mana of that color equal to the number of creatures you control of the chosen type.

Look at the top six cards of your library. You may put a creature card with mana value 3 or less from among them onto the battlefield, then conjure a duplicate of that card onto the battlefield. The duplicate perpetually has base power and toughness 1/1. Put the rest on the bottom of your library in a random order.

Target player discards three cards.

Spree (Choose one or more additional costs.)
+ — Counter target spell.
+ — Create a token that's a copy of target artifact or creature you control.
+ — Draw two cards, then discard a card.

Search your library for up to three Aura cards with different names, reveal them, put them into your hand, then shuffle.

Whenever you attack, you may pay and sacrifice an Aura attached to Three Dog. When you sacrifice an Aura this way, for each other attacking creature you control, create a token that's a copy of that Aura attached to that creature.

, : Choose one that hasn't been chosen —
• This artifact deals 2 damage to target creature.
• Tap target creature.
• Sacrifice this artifact. You gain 3 life.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
Create a 1/1 white Mouse creature token.
, Create a token that's a copy of target token you control.
Creatures you control get +1/+1 and gain vigilance until end of turn.

Search your library for up to four creature cards with different powers and reveal them. An opponent chooses two of those cards. Shuffle the chosen cards into your library and put the rest into your hand.

When this enchantment enters, manifest dread.
Whenever a face-down permanent you control enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn.

Enchant creature with mana value 2 or less
You control enchanted creature.

, , Sacrifice another creature or artifact: Draw a card.

Haste
Whenever Thraximundar attacks, defending player sacrifices a creature of their choice.
Whenever a player sacrifices a creature, you may put a +1/+1 counter on Thraximundar.

This spell costs less to cast for each other spell cast this turn.
Trample, haste
Trample over planeswalkers
Thrasta has hexproof as long as it entered this turn.

: Scry 1, then reveal the top card of your library. If it's a land card, put it onto the battlefield tapped. Otherwise, draw a card.
Partner

: This creature deals 1 damage to each creature and each player.