Mulligans
This deck is centered around using protoss spells to increase damage / reduce mana cost of the colossus that will use it’s beam twice each cast. Late game you will be able to get the colossus to do 12-15 damage times 2 each cast doing a staggering 30 damage. You want to then combo this with youthful brewmaster to put it back to your hand. This will allow you cast it upwards to 4 times or around 100-120 damage worth in only 2-3 turns.
Video Gameplay Breakdown:
https://youtu.be/J0gFGUpHBs0