Strength of Giants
Strength of Giants is an excellent Combat Magic spell, a Level 3 Enchantment that requires 
3 and zero Gems to use. It applies a +4 Strength bonus to friendly troops and Commanders in a very large area, around 25 squares.
Are There Alternatives?
Sort of. Earth Might applies the exact same effect to a single square; it's a Level 1 Alteration that requires only 2. These do not stack.
Alternatively, Strength of Gaia applies this, Barkskin, and 10% Regeneration to just the caster; it's a Level 4 Conjuration that requires 
31.
Last but not least, Rush of Strength applies this to your entire army; it's a Level 8 Blood Magic spell that requires 
3 and 1
.
Alternatively, if you're a Demon, Blood Lust applies it to you (if the caster's on your side); it requires only 2 and 1, and comes at Level 4.
What if I lack High Earth?
No problem! Just give an 2 mage 1
! Or if you're in no rush in the battle, have the 2 cast Summon Earthpower instead; it's a Level 3 Conjuration that provides the necessary pathboost without needing a Gem, along with Reinvigoration.
| Notable Spells | ||
|---|---|---|
| Rituals | Personal Enchantments | Divine Name/Gift of Reason • Transformation • Twiceborn • Cure Disease |
| Strategic | Domes • Globals • Magic Phase Movement • Remote Attacks | |
| Summons | Cross Breeding • Elemental Royalty • Hidden Underneath/in Snow/in Sand • Infernal Breeding • Reanimation • Release Lord of Civilization • Ritual of Rebirth • Tartarian Gate | |
| Other | Wish | |
| Combat Magic | Battlefield Enchantments | |
| Buffs | Hell Power • Life after Death • Mossbody • Pain Transfer • Phoenix Pyre • Returning • Soul Vortex • Strength of Giants • Time Stop | |
| Debuffs | Armor of Achilles • Earth Grip • False Fetters | |
| Direct Damage | Divine Magic • Magic Duel • Soul Slay | |
| Summons | Reanimation | |
| Other | Communions • Enslave Mind | |