Snakeskin Veil

Put a +1/+1 counter on target creature you control. It gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Ezuri's Brigade

Metalcraft — As long as you control three or more artifacts, this creature gets +4/+4 and has trample.

Plains

Wooded Bastion

{T}: Add {C}.
{G/W}, {T}: Add {G}{G}, {G}{W}, or {W}{W}.

Ornithopter

Forest

Giant Growth

Target creature gets +3/+3 until end of turn.

Ardent Recruit

Metalcraft — This creature gets +2/+2 as long as you control three or more artifacts.

Dispatch

Tap target creature.
Metalcraft — If you control three or more artifacts, exile that creature.

Mirran Mettle

Target creature gets +2/+2 until end of turn.
Metalcraft — That creature gets +4/+4 until end of turn instead if you control three or more artifacts.

Battlefield Raptor

Signal Pest

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)
This creature can't be blocked except by creatures with flying or reach.

Porcelain Legionnaire

({W/P} can be paid with either {W} or 2 life.)
First strike

Memnite

Blacksmith's Skill

Target permanent gains hexproof and indestructible until end of turn. If it's an artifact creature, it gets +2/+2 until end of turn.

Mutagenic Growth

({G/P} can be paid with either {G} or 2 life.)
Target creature gets +2/+2 until end of turn.

Etched Champion

Metalcraft — This creature has protection from each color as long as you control three or more artifacts.

Dispense Justice

Target player sacrifices an attacking creature of their choice.
Metalcraft — That player sacrifices two attacking creatures of their choice instead if you control three or more artifacts.

Temple Garden

({T}: Add {G} or {W}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped.

Thornglint Bridge

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

Ancient Den

Tree of Tales

Overgrown Farmland

This land enters tapped unless you control two or more other lands.
{T}: Add {G} or {W}.