Arcbound Mouser

Lifelink
Modular 1 (This creature enters with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

Secluded Steppe

Secluded Steppe enters tapped.
{T}: Add {W}.
Cycling {W} ({W}, Discard this card: Draw a card.)

Basri's Acolyte

Lifelink (Damage dealt by this creature also causes you to gain that much life.)
When Basri's Acolyte enters, put a +1/+1 counter on each of up to two other target creatures you control.

Trained Caracal

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Arrester's Zeal

Target creature gets +2/+2 until end of turn.
Addendum — If you cast this spell during your main phase, that creature gains flying until end of turn.

Excise

Exile target attacking creature unless its controller pays {X}.

Battlefield Promotion

Put a +1/+1 counter on target creature. That creature gains first strike until end of turn. You gain 2 life.

Inspiring Roar

Put a +1/+1 counter on each creature you control.

Lost Leonin

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Sunlance

Sunlance deals 3 damage to target nonwhite creature.

Oreskos Sun Guide

Inspired — Whenever Oreskos Sun Guide becomes untapped, you gain 2 life.

Mesa Lynx

During turns other than yours, Mesa Lynx gets +0/+2.

Sunspear Shikari

As long as Sunspear Shikari is equipped, it has first strike and lifelink.

Shelter

Target creature you control gains protection from the color of your choice until end of turn.
Draw a card.

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Plains

Peach Garden Oath

You gain 2 life for each creature you control.

Aura Blast

Curtain of Light

Cast this spell only during combat after blockers are declared.
Target unblocked attacking creature becomes blocked. (This spell works on creatures that can't be blocked.)
Draw a card.

Maned Serval

Prowling Felidar

Vigilance
Landfall — Whenever a land you control enters, put a +1/+1 counter on Prowling Felidar.

Charmed Stray

Lifelink
When Charmed Stray enters, put a +1/+1 counter on each other creature you control named Charmed Stray.

Pressure Point

Radiant Fountain

When Radiant Fountain enters, you gain 2 life.
{T}: Add {C}.

Ajani's Sunstriker

Dauntless Unity

Kicker {1}{W} (You may pay an additional {1}{W} as you cast this spell.)
Creatures you control get +1/+1 until end of turn. If this spell was kicked, those creatures get +2/+1 until end of turn instead.