Ghalta, Primal Hunger

This spell costs {X} less to cast, where X is the total power of creatures you control.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Imperial Aerosaur

Flying
When this creature enters, another target creature you control gets +1/+1 and gains flying until end of turn.

Aggravated Assault

{3}{R}{R}: Untap all creatures you control. After this main phase, there is an additional combat phase followed by an additional main phase. Activate only as a sorcery.

Thundering Spineback

Other Dinosaurs you control get +1/+1.
{5}{G}: Create a 3/3 green Dinosaur creature token with trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)

Mountain

Lightning Helix

Lightning Helix deals 3 damage to any target and you gain 3 life.

Burning Sun's Avatar

When this creature enters, it deals 3 damage to target opponent or planeswalker and 3 damage to up to one target creature.

Ranging Raptors

Enrage — Whenever this creature is dealt damage, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Otepec Huntmaster

Dinosaur spells you cast cost {1} less to cast.
{T}: Target Dinosaur gains haste until end of turn.

Disaster Radius

As an additional cost to cast this spell, reveal a creature card from your hand.
Disaster Radius deals X damage to each creature your opponents control, where X is the revealed card's mana value.

Frenzied Raptor

Charging Monstrosaur

Raging Swordtooth

Trample
When this creature enters, it deals 1 damage to each other creature.

Prismatic Lens

{T}: Add {C}.
{1}, {T}: Add one mana of any color.

Prey Upon

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Bellowing Aegisaur

Enrage — Whenever this creature is dealt damage, put a +1/+1 counter on each other creature you control.

Raptor Hatchling

Enrage — Whenever this creature is dealt damage, create a 3/3 green Dinosaur creature token with trample.

Dinosaur Stampede

Attacking creatures get +2/+0 until end of turn. Dinosaurs you control gain trample until end of turn.

Kinjalli's Caller

Dinosaur spells you cast cost {1} less to cast.

Sheltering Light

Target creature gains indestructible until end of turn. Scry 1. (Damage and effects that say "destroy" don't destroy the creature.)

Etali, Primal Storm

Whenever Etali attacks, exile the top card of each player's library, then you may cast any number of spells from among those cards without paying their mana costs.

Garruk's Uprising

When this enchantment enters, if you control a creature with power 4 or greater, draw a card.
Creatures you control have trample. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)
Whenever a creature you control with power 4 or greater enters, draw a card.

Path to Exile

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Hunter's Prowess

Until end of turn, target creature gets +3/+3 and gains trample and "Whenever this creature deals combat damage to a player, draw that many cards."

Quicksilver Amulet

{4}, {T}: You may put a creature card from your hand onto the battlefield.

Snapping Sailback

Flash
Enrage — Whenever this creature is dealt damage, put a +1/+1 counter on it. (It must survive the damage to get the counter.)

Regisaur Alpha

Other Dinosaurs you control have haste.
When this creature enters, create a 3/3 green Dinosaur creature token with trample.

Forest

Jungle Shrine

This land enters tapped.
{T}: Add {R}, {G}, or {W}.

Vow of Wildness

Enchant creature
Enchanted creature gets +3/+3, has trample, and can't attack you or planeswalkers you control.

Drover of the Mighty

This creature gets +2/+2 as long as you control a Dinosaur.
{T}: Add one mana of any color.

Nest Robber

Armasaur Guide

Vigilance (Attacking doesn't cause this creature to tap.)
Whenever you attack with three or more creatures, put a +1/+1 counter on target creature you control.

Plains

Raptor Companion

Savage Stomp

This spell costs {2} less to cast if it targets a Dinosaur you control.
Put a +1/+1 counter on target creature you control. Then that creature fights target creature you don't control. (Each deals damage equal to its power to the other.)