Murtagh, Tormented Guide

Flash, first strike, perseverance (This creature has protection from fear and intimidate.)
When Murtagh, Tormented Guide enters the battlefield, choose two;
• Deal 4 damage to target creature.
• Untap target creature, give it a +1/+1 counter.
• Target player may search their library for a mountain, plains or forest and put it on the battlefield tapped, then shuffle.