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.

When Smiling Sludge enters, create a Berry token.
Whenever you sacrifice a nonland permanent, target opponent loses 1 life and you gain 1 life.

Level up {2}{B}
[level 1-2] Deathtouch
[level 3+] Deathtouch

Equipped creature gets +1/+1.
As long as equipped creature was activated this turn, it gets an additional +2/+2 and can attack as though it were untapped.
Equip {2}

When Snowscryer enters, surveil 3.

Equipped creature gets +1/+0 and has flying.
Equip {2}

This land enters tapped.
{2}{W}{U}, {T}: Surveil 1.

Return target creature to its owner's hand. If you controlled it, create a token that's a copy of it. Otherwise, create a 0/0 colorless Robot artifact creature token with a +1/+1 counter on it.

This land enters tapped unless you control one or fewer other lands.
{T}: Add {G} or {U}.
Cycling {2}

When Sola enters, create a Treasure token.
{2}, Sacrifice a Treasure: You gain 3 life.
{2}, Sacrifice a Treasure: Draw a card.

Haste
Amity — Whenever you attack with Solid Smog and exactly one other creature, you may pay {R}. If you do, transform Solid Smog.

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.

Flying
When Soul's Sunset enters, exile up to two target cards from graveyards. You gain 2 life.
Surface {4}{B}{B}

When Soul-Guide Lantern enters, exile target card from a graveyard.
{T}, Sacrifice Soul-Guide Lantern: Exile each opponent's graveyard.
{1}, {T}, Sacrifice Soul-Guide Lantern: Draw a card.

Enchant creature with power 2 or less
You control enchanted creature.

Exile target creature or Subroutine, then return that card to the battlefield under its owner's control.
Cache the top card of your library face down.

Flying
Nonland permanents you control have phasing.
Whenever Spacetime Seraph phases out, until your next turn, your life total can't change and you have protection from everything.

When Sparks of a Revolution enters, create a 1/1 colorless Soldier creature token. It gains haste until end of turn.
Three or more sources you controlled dealt damage this turn.
A source you controlled dealt 3 or more damage this turn.

Counter target activated or triggered ability from a nonland source. If a creature's ability is countered this way, you may pay {1}{C}. If you do, exile that creature.

{T}: Add one mana of any color.
At the beginning of combat on your turn, if you've spent at least five mana to cast spells this turn, untap Speaker of Endless Winter and put a +1/+1 counter on it.

Whenever a Ruin you control becomes spellcharged, put a +1/+1 counter on Speaker of the Forebears.
Sacrifice Speaker of the Forebears: Add an amount of {R} equal to the number of +1/+1 counters on it.

Prowess
When Speaker of the Lightning enters, return target instant or sorcery card from your graveyard to your hand.

Whenever Spear of the Sun-Crowned attacks, if you control two or more enchanted creatures, it gains lifelink until end of turn.

Whenever another creature you control enters, you may pay {X}{X}. If you do, put X +1/+1 counters on that creature.
{T}: Add one mana of any color.

Vigilance, ward {2}
Memories you control are 4/4 creatures with vigilance and ward {2} in addition to their other types.