How attack another player? #1 Guide

This is a guide for attack enemies when you can but powerfull spells from the Relic Hall. Let's take in consideration these four spells:

Here there are the descriptions of the spells at level 1 in order from left to right:

1. Restoration: Places a healing circle on the battlefield, healing all friendly troops in the area for 6% of their Max HP + 10 HP every second for 8 seconds.
2.  Ares' Fervor: Invokes Ares' strength on all your troops and heros, granting them +5% ATK until the battle ends.
3. Guardian Angel: Summons an Angel's protection, granting invulnerability to a number of friendly troops (including heroes) in the area for 6 seconds. 
4. Ares' Frenzy: Ares' bloodlust possesses friendly troops (including Heroes) in an area for 8 seconds, granting +20% ATK, ATK SPD, and MOV SPD.

Before to explain this strategy, let's look together the picture below:

1.  The point 1 is when the attack starts. You have use all your army, starting with the heroes and units, then Ares' Fevor.
2. In this point you have to use Restoration.
3. Before to enter  inside the enemy base, you have to use Guardian Angel and Ares' Frenzy.

 What do you think about this strategy?