Double strike

Flash
Enchant creature
Enchanted creature gets +2/+5.

To the Last Breath deals 4 damage to target attacking or blocking creature.

Flash
Flying
When Swooping Hunter enters, create a Berry token, then you may return another creature you control to its owner's hand.

First strike
Landfall — Whenever a land you control enters, you may tap target creature.

When Soothing Singer enters, exile target nonland permanent you don't control until Soothing Singer leaves the battlefield.
{1}{W}: Soothing Singer gets +0/+2 until end of turn.

Once each turn, when Smart Shopper enters or you cast a creature spell, you may create a Berry token. If three or more types of mana were spent to cast it, create two of those tokens instead.

Whenever you activate an ability that targets Shiver Elemental, you may copy that ability. You may choose new targets for the copy.

Create two 1/1 white Golem creature tokens.
Landfall — {W}, Exile The Ruins Awaken from your graveyard: Create a 1/1 white Golem creature token. Activate only as a sorcery and only if a land entered the battlefield under your control this turn.

Vigilance
{2}{W}: Create a Berry token and attach it to Restless Sloth.

Return up to one target artifact, enchantment, or land card from your graveyard to your hand.
Create two Berry tokens.

Each player who controls an artifact or enchantment creates a 2/2 white Mouse creature token. Then destroy all artifacts and enchantments.

Flying
When Hungry Songbird enters, create a Berry token.

When Heavy Snowfall enters, target creature you control gets +1/+1 and gains indestructible until end of turn.

Whenever you attack, attacking creatures you control get +1/+1 until end of turn.

When Generous Farmer enters, create a Berry token.
Whenever you sacrifice a Berry, create a 1/1 green Plant creature token.

Choose one or both —
• Target Human creature you control gets +1/+1 and gains indestructible until end of turn.
• Target non-Human creature you control gets +1/+1 and gains indestructible until end of turn.

Legendary permanents you control have “{1}, {T}: Tap target creature.”
At the beginning of each end step, scry 1 if you spent {U} to activate abilities this turn, Ema deals 1 damage to each opponent if you spent {R}, and put a +1/+1 counter on a creature you control if you spent {W}.

Return target permanent card with an activated ability from your graveyard to the battlefield. You may activate its abilities this turn as though it had haste.

Once each turn, when you activate a nonmana ability, you gain 2 life.

Once each turn, when you activate an ability of a creature you control, untap that creature and put a +1/+1 counter on it.

When Contest Coordinator enters, look at the top five cards of your library. You may reveal a Plains card or a nonland card with an activated ability from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Choose one —
• Exile target enchantment.
• You gain 4 life.
• Acclimate.

Lifelink
{1}{W}: Put a stun counter on target creature that attacked this turn. Activate only once each turn.

This spell costs {X} less to cast, where X is the amount of mana you've spent to activate abilities this turn.
Exile target nonland permanent.