Flying

You may collect evidence 10 rather than pay the mana cost for spells you cast. (To collect evidence 10, exile cards with total mana value 10 or greater from your graveyard.)

Commander creatures you own have "At the beginning of your end step, exile up to one target tapped creature you control, then return it to the battlefield under its owner's control."

: Gravel Slinger deals 1 damage to target attacking or blocking creature.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Whenever you cast a blue spell, Gravelgill Duo gets +1/+1 until end of turn.

Whenever you cast a black spell, Gravelgill Duo gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

Flying

When Gravelighter enters, draw a card if a creature died this turn. Otherwise, each player sacrifices a creature of their choice.

+1: Scry 1, then draw a card.

−2: Return target creature to its owner's hand.

−8: You get an emblem with "Whenever an opponent casts their first spell each turn, counter that spell."

Whenever Kellan, Daring Traveler attacks, reveal the top card of your library. If it's a creature card with mana value 3 or less, put it into your hand. Otherwise, you may put it into your graveyard.

When Ominous Traveler enters the battlefield, draft a card from Ominous Traveler's spellbook. That card perpetually gains "You may spend mana as though it were mana of any color to cast this spell" and "When you cast this spell, return a creature named Ominous Traveler you control to its owner's hand."

Whenever a creature you control explores, put a +1/+1 counter on Shadowed Caravel.

Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

Each opponent can cast spells only any time they could cast a sorcery.

+1: Until your next turn, you may cast sorcery spells as though they had flash.

−3: Return up to one target artifact, creature, or enchantment to its owner's hand. Draw a card.

Council's dilemma — Starting with you, each player votes for Redhorn Pass or Mines of Moria. For each Redhorn Pass vote, search your library for a basic land card and put it onto the battlefield tapped. If you search your library this way, shuffle. For each Mines of Moria vote, return a card from your graveyard to your hand.

Exile Travel Through Caradhras.

Enchant creature

As Traveler's Cloak enters, choose a land type.

When Traveler's Cloak enters, draw a card.

Enchanted creature has landwalk of the chosen type. (It can't be blocked as long as defending player controls a land of that type.)

Choose target artifact or enchantment. Its owner shuffles it into their library.

Landfall — Whenever a land you control enters, manifest dread if this is the first time this ability has resolved this turn. Otherwise, you may turn a permanent you control face up. (To manifest dread, look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)