Francisco Badilla

"Nice boy . . . nice boy. Nice dinosaur!"

Spitting Dilophosaurus

Whenever Spitting Dilophosaurus enters the battlefield or attacks, put a -1/-1 counter on up to one target creature.
Creatures your opponents control with -1/-1 counters on them can't block.

Whenever this creature enters or attacks, put a -1/-1 counter on up to one target creature.
Creatures your opponents control with -1/-1 counters on them can't block.

Iron Hills Blacksmith

Double strike
When this creature enters, create a colorless Equipment artifact token named Axe with "Equipped creature gets +1/+0" and equip {2}.

The Arkenstone // The Arkenstone

The Arkenstone // Seek the Heart

Creatures you control get +1/+1.
At the beginning of your end step, draw a card.

Orcrist, Goblin-cleaver

Equipped creature gets +2/+2 and has trample.
Whenever equipped creature deals combat damage to a player, choose a creature type. Create a Treasure token for each creature you control of that type.
Equip {3}

Last Light of Durin's Day

Whenever a Mountain you control enters, put a quest counter on this enchantment. If it has six or more quest counters on it, sacrifice it. If you do, search your hand and/or library for a Dragon card and put it onto the battlefield. If you search your library this way, shuffle.
Mountaincycling {2} ({2}, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

Glóin the Mighty // Easy Pickings

At the beginning of your first main phase, add {R}{R}.

Dancing from Dark to Dawn

Whenever you cast a creature spell, put X +1/+1 counters on target creature you control, where X is that spell's mana value.
Landfall — Whenever a land you control enters, create a 2/2 green Bear creature token.

Oscorp Industries

This land enters tapped.
When this land enters from a graveyard, you lose 2 life.
{T}: Add {U}, {B}, or {R}.
Mayhem (You may play this card from your graveyard if you discarded it this turn. Timing rules still apply.)

Mob Lookout

When this creature enters, target creature you control connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.)

Eerie Gravestone

When this artifact enters, draw a card.
{1}{B}, Sacrifice this artifact: Mill four cards. You may put a creature card from among them into your hand. (To mill four cards, put the top four cards of your library into your graveyard.)

A harmonious production for a better world.

Eusocial Engineering

Landfall — Whenever a land you control enters, create a 2/2 colorless Robot artifact creature token.
Warp {1}{G} (You may cast this card from your hand for its warp cost. Exile this enchantment at the beginning of the next end step, then you may cast it from exile on a later turn.)

Edge Rover

Reach
When this creature dies, each player creates a Lander token. (It's an artifact with "{2}, {T}, Sacrifice this token: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.")

Like talking to a grokmaul
—Tarkir expression meaning "a failure of diplomacy"

Sagu Pummeler

Reach
Renew — {4}{G}, Exile this card from your graveyard: Put two +1/+1 counters and a reach counter on target creature. Activate only as a sorcery.

Rangers' Refueler

Whenever you activate an exhaust ability, draw a card.
Exhaust — {4}: This Vehicle becomes an artifact creature. Put a +1/+1 counter on it. (Activate each exhaust ability only once.)
Crew 2

Rangers' Aetherhive

Vigilance
Whenever you activate an exhaust ability, create a 1/1 colorless Thopter artifact creature token with flying.
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Lumbering Worldwagon

This Vehicle's power is equal to the number of lands you control.
Whenever this Vehicle enters or attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Crew 4

Broadcast Rambler

When this Vehicle enters, create a 1/1 colorless Thopter artifact creature token with flying.
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Summoning it is easy. Controlling it is another matter.

Bloodghast

This creature can't block.
This creature has haste as long as an opponent has 10 or less life.
Landfall — Whenever a land you control enters, you may return this card from your graveyard to the battlefield.

Spawning Bed

{T}: Add {C}.
{6}, {T}, Sacrifice this land: Create three 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this token: Add {C}."