Level up {1}{B}
[level 1-3] When this creature dies, return it to its owner's hand.
[level 4+] Whenever a creature you control dies, return it its owner's hand.

Target creature gets +3/+3 until end of turn. If the total number of land cards you own in exile, in your graveyard, and on the battlefield is at least seven, it gets +5/+5 instead, then untap it.

Whenever you attack, Sunny Day deals X damage to target player or planeswalker, where X is the number of attacking creatures.

When this creature enters, tap up to one target creature.
Flow — {3}{U}: Tap target creature.

Deathtouch
Whenever Survivor of Pidae becomes the target of a spell you control, you may destroy target artifact or enchantment you don't control.

When Sustainable Investments enters, create a Treasure token.
Treasures you control have “{T}: Add one mana of any color.”

Target creature you control deals damage equal to its power to another target creature. When it deals excess damage this way, it deals damage equal to the excess to any target.

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

When Synod of Sanctions enters, exile up to one target creature. For as long as that card remains exiled, its owner may cast it. A spell cast this way costs {1} more to cast.

Haste
Talon Triplets can't be blocked by creatures with power 2 or less.
Amity — Whenever you attack with Talon Triplets and exactly one other creature, that creature can't be blocked by creatures with power 2 or less this turn.

At the beginning of each opponent's upkeep, Teetering Panda deals 2 damage to them if they control a tapped permanent. If they control three or more, you gain 2 life and draw a card.
{2}, {T}: You may tap or untap another target creature.
{2}, {Q}: Put a stun counter on target creature.

Search your library for a basic land card, put it onto the battlefield, then shuffle.
Acclimate.

Destroy target non-Human creature. If it has Berries attached to it, gain control of them. Otherwise, create a Berry token.

Test Subject Alpha enters with a +1/+1 counter and a trample counter on it.
At the beginning of your upkeep, you may move a counter from Test Subject Alpha onto another creature.

Enchant player
Enchanted player can't gain life.
At the beginning of your upkeep, enchanted player loses 1 life and you gain 1 life.

Whenever you cast a noncreature spell, creatures you control get +1/+1 and gain haste until end of turn.

I — Exile up to one target permanent with mana value 4 or greater.
II — Create two 1/1 white Human creature tokens.
III — Each player gains control of all permanents they own. If you gained control of no permanents this way, draw a card.

Whenever you cast a noncreature spell, create a 1/1 white Human creature token, then target player mills two cards.

Whenever you cycle a card, draw a card.
Cycling {2}{U}
When you cycle this card, copy target triggered ability you control. You may choose new targets for the copy.

Enchant land
Enchanted land has “{T}: Add two mana in any combination of colors. You gain 1 life.”

I — Each opponent discards two cards, then mills two cards.
II — Each opponent loses 2 life and you gain 2 life.
III — For each opponent that has eight or more cards in their graveyard, exile a card from that player's graveyard. You may cast cards exiled this way this turn, and mana of any type can be spent to cast cast it.

When The Smoking Strand enters, you may search your library for a planeswalker card, reveal it, put it into your hand, then shuffle.
Planeswalkers you control have “+1: Draw a card.”

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

Draw three cards. Then discard two cards unless you discard a card with flashback.
Flashback {6}{U}{U}

When Thornlasher Mortis enters, mill two cards.
Whenever one or more cards leave your graveyard, create a 1/1 green Saproling creature token. This ability triggers only once each turn.