Guru, Wandering Guide

Dream Time - {1}{g},{t}: Put a dream counter on target creature. Guru gets +0/+1 for each dream counter on creatures you don’t control.

Walk About - Creatures with dream counters on
them are goaded.When a goaded creature attacks it gets +0/+X, where X is equal to Guru’s toughness.

Thick as Thieves (You can have two commanders if both have thick as thieves.)