Trample

Abominable Treefolk's power and toughness are each equal to the number of snow permanents you control.

When Abominable Treefolk enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Prevent all damage that would be dealt to Argothian Treefolk by artifact sources.

Reach

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

At the beginning of combat on your turn, other creatures you control with power 4 or greater gain trample and haste until end of turn.

: Return Darting Merfolk to its owner's hand.

: Ebony Treefolk gets +1/+1 until end of turn.

You gain 1 life for each creature you control.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

: Folk of the Pines gets +1/+0 until end of turn.

Create two 1/1 white Human creature tokens.

Fateful hour — If you have 5 or less life, create five of those tokens instead.

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

Fading 4 <I>(This creature enters the battlefield with four fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)</I>

Remove a fade counter from Jolting Merfolk: Tap target creature.

Domain — For each basic land type among lands you control, Magnigoth Treefolk has landwalk of that type. (It can't be blocked as long as defending player controls a land of that type.)

When Merfolk Branchwalker enters the battlefield, it explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

: Merfolk Coralsmith gets +1/-1 until end of turn.

When Merfolk Coralsmith dies, scry 2.

: Draw a card, then discard a card.

Other Merfolk you control get +1/+1.

Flash (You may cast this spell any time you could cast an instant.)

When Merfolk Pupil enters the battlefield, draw a card, then discard a card.

, Exile Merfolk Pupil from your graveyard: Draw a card, then discard a card.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

: Tap target creature without flying.

When Merfolk Seer dies, you may pay . If you do, draw a card.

Flying

Whenever Merfolk Skyscout attacks or blocks, untap target permanent.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Whenever Merfolk Spy deals combat damage to a player, that player reveals a card at random from their hand.

When Merfolk Traders enters the battlefield, draw a card, then discard a card.

Flying

When Merfolk Wayfinder enters the battlefield, reveal the top three cards of your library. Put all Island cards revealed this way into your hand and the rest on the bottom of your library in any order.

: The next time damage would be dealt to Mirrorwood Treefolk this turn, that damage is dealt to any target instead.

Lifelink

Mold Harvest — , Sacrifice another creature or an artifact: Put a +1/+1 counter on Mold Folk.

Put two +1/+1 counters on target creature. (Then exile this card. You may cast the creature later from exile.)

: River Merfolk gains mountainwalk until end of turn. (It can't be blocked as long as defending player controls a Mountain.)

Cycling (, Discard this card: Draw a card.)

, , Sacrifice Scavenger Folk: Destroy target artifact.

Shadow (This creature can block or be blocked by only creatures with shadow.)

: Put Thalakos Mistfolk on top of its owner's library.

When Treefolk Harbinger enters the battlefield, you may search your library for a Treefolk or Forest card, reveal it, then shuffle and put that card on top.

Whenever Treefolk Mystic blocks or becomes blocked by a creature, destroy all Auras attached to that creature.

Enchant creature

Enchanted creature gets +0/+2 and assigns combat damage equal to its toughness rather than its power.

Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Whenever one or more other creatures you control die, put a +1/+1 counter on Vengeful Townsfolk.

Trample

When Weatherseed Treefolk dies, return it to its owner's hand.

: Wormwood Treefolk gains forestwalk until end of turn and deals 2 damage to you. (It can't be blocked as long as defending player controls a Forest.)

: Wormwood Treefolk gains swampwalk until end of turn and deals 2 damage to you. (It can't be blocked as long as defending player controls a Swamp.)