: If Kellan is a Scout, it becomes a Human Faerie Detective and gains "Whenever Kellan deals combat damage to a player, exile the top card of your library. You may play that card this turn."

: If Kellan is a Detective, it becomes a 3/2 Human Faerie Rogue and gains double strike.

Flying

When Kor Cartographer enters, you may search your library for a Plains card, put it onto the battlefield tapped, then shuffle.

Undergrowth — When Kraul Foragers enters, you gain 1 life for each creature card in your graveyard.

Rally — Whenever Lantern Scout or another Ally you control enters, creatures you control gain lifelink until end of turn.

: You may put a land card from your hand onto the battlefield.

Whenever another nontoken creature you control enters, investigate.

, Sacrifice X Clues: Target opponent reveals the top X cards of their library. You may put a nonland permanent card with mana value X or less from among them onto the battlefield under your control. That player puts the rest on the bottom of their library in a random order.

Flying

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

When Mausoleum Guard dies, create two 1/1 white Spirit creature tokens with flying.

If you would get one or more poison counters, instead you get one poison counter and you can't get additional poison counters this turn.

Exile Melira, the Living Cure: Choose another target creature or artifact. When it's put into a graveyard this turn, return that card to the battlefield under its owner's control.

Whenever a creature you control explores, Merfolk Cave-Diver gets +1/+0 until end of turn and can't be blocked this turn.

Flying

Whenever Merfolk Skyscout attacks or blocks, untap target permanent.

Whenever Miara, Thorn of the Glade or another Elf you control dies, you may pay and 1 life. If you do, draw a card.

Partner (You can have two commanders if both have partner.)

Whenever a player attacks you, target attacking creature gets -2/-0 until end of turn.

Whenever a player attacks, if they aren't attacking you, that player chooses an attacking creature. It gets +2/+0 until end of turn.

When Mwonvuli Beast Tracker enters, search your library for a creature card with deathtouch, hexproof, reach, or trample and reveal it. Shuffle and put that card on top.

Flying

Domain — Whenever Nael, Avizoa Aeronaut deals combat damage to a player, look at the top X cards of your library, where X is the number of basic land types among lands you control. Put up to one of them on top of your library and the rest on the bottom in a random order. Then if there are five basic land types among lands you control, draw a card.

Whenever a creature you control explores a land card, you may put a land card from your hand onto the battlefield tapped.

Whenever a creature you control explores a nonland card, put a +1/+1 counter on Nicanzil, Current Conductor.

Landfall — Whenever a land you control enters, add one mana of any color. Then if this is the second time this ability has resolved this turn, reveal cards from the top of your library until you reveal an Elf or Elemental card. Put that card into your hand and the rest on the bottom of your library in a random order.

Flying

Any time you could mulligan and No-Regrets Egret is in your hand, you may reveal No-Regrets Egret. If you do, look at the top two cards of your library. (Put those cards back in the same order. You can still mulligan.)

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, put a +1/+1 counter on target creature.

When Patient Naturalist enters, mill three cards. Put a land card from among the milled cards into your hand. If you can't, create a Treasure token. (To mill three cards, put the top three cards of your library into your graveyard.)

Constellation — Whenever an enchantment you control enters, target creature gets +1/+1 until end of turn.

Flying

Whenever Plumecreed Mentor or another creature you control with flying enters, put a +1/+1 counter on target creature you control without flying.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Whenever Primeval Herald enters or attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

: Add one mana of any color that a land an opponent controls could produce.

Flying

: Rappelling Scouts gains protection from the color of your choice until end of turn.

Haste

Landfall — Whenever a land you control enters, Reckless Pyrosurfer gains battle cry until end of turn. (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn. Each instance of battle cry triggers separately.)

Vigilance

When River Herald Guide enters, 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.)

: Add .

, : Add one mana of any color.

Haste (This creature can attack and as soon as it comes under your control.)

Whenever Ruby attacks while you control a creature with power 4 or greater, Ruby gets +2/+2 until end of turn.

: Add or .

Sacrifice Saffi Eriksdotter: When target creature is put into your graveyard this turn, return that card to the battlefield.

Outlast (, : Put a +1/+1 counter on this creature. Outlast only as a sorcery.)

When Sand Scout enters, if an opponent controls more lands than you, search your library for a Desert card, put it onto the battlefield tapped, then shuffle.

Whenever one or more land cards are put into your graveyard from anywhere, create a 1/1 red, green, and white Sand Warrior creature token. This ability triggers only once each turn.

Whenever an artifact you control enters, look at the top card of your library. If it's a land card, you may reveal it and put it into your hand. If you don't put the card into your hand, you may put it into your graveyard.

Myriad, myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token that's a copy of this creature that's tapped and attacking that player or a planeswalker they control. Then do it again. Exile the tokens at end of combat.)

Whenever Scurry of Squirrels deals combat damage to a player, put a +1/+1 counter on target creature you control.

: Seeker of Sunlight explores. Activate only as a sorcery. (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.)

Vigilance

Whenever you cast a creature spell, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."

: Choose a color. Add one mana of that color for each different power among creatures you control.

Whenever another creature enters, its controller may draw a card if its power is greater than each other creature's power.

, : Add X mana in any combination of colors, where X is the greatest power among creatures you control.

Flying, vigilance

, Exile Senu, Keen-Eyed Protector: You gain 2 life and scry 2.

When a legendary creature you control attacks and isn't blocked, if Senu is exiled, put it onto the battlefield attacking.

When Shoreline Scout enters the battlefield, you may exile a Merfolk card or a land card from your hand. If you do, conjure a card named Tropical Island into your hand.

As long as another Merfolk or an Island entered the battlefield under your control this turn, Shoreline Scout gets +1/+0.

Flying

, Sacrifice Silkwing Scout: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Flying

When this creature transforms into Skyclave Invader, look at the top card of your library. If it's a land card, you may put it onto the battlefield. If you don't put the card onto the battlefield, put it into your hand.

Whenever Skyline Scout attacks, you may pay . If you do, it gains flying until end of turn.

First strike, vigilance

Concealed Position — When Space Marine Scout enters, if an opponent controls more lands than you, you may search your library for a Plains card, put it onto the battlefield tapped, then shuffle.

: Look at the top four cards of your library. You may reveal a creature card with power 2 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

When Subterranean Scout enters, target creature with power 2 or less can't be blocked this turn.

When Sylvan Ranger enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Flying

When Talas Explorer enters, look at target opponent's hand.