Temur Battle Rage

Target creature gains double strike until end of turn.
Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

Mountain

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Avaricious Dragon

Flying
At the beginning of your draw step, draw an additional card.
At the beginning of your end step, discard your hand.

Brute Force

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

Unleash Fury

Double the power of target creature until end of turn.

Madcap Skills

Enchant creature
Enchanted creature gets +3/+0 and has menace.

Assault Strobe

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

Infuriate

Target creature gets +3/+2 until end of turn.

Goblin Guide

Haste
Whenever Goblin Guide attacks, defending player reveals the top card of their library. If it's a land card, that player puts it into their hand.

Champion of the Flame

Trample
Champion of the Flame gets +2/+2 for each Aura and Equipment attached to it.