Haha, sorry, just the last one that I saw. Ok! So the easiest way to do this is to open the Elemental/data/English/CoreSpells_LIFE_Strategic.xml. Copy the following code and paste it over the Heal Spell (the one at the very top).
<!-- *************** -->
<!-- ** L1 - Heal ** -->
<!-- *************** -->
<SpellDef InternalName="HealSpell">
<DisplayName>Heal</DisplayName>
<UsefulInMP>0</UsefulInMP>
<Description>Heals target unit by [2 + (Int/2)].</Description>
<Image>BG_MassHeal.png</Image>
<IconFG>Heal_Icon.png</IconFG>
<IconBG>Heal_Icon_BG.png</IconBG>
<IconColor>174,255,59</IconColor>
<Range>3</Range>
<SpellLevel>1</SpellLevel>
<RequiredStat>UnitStat_Intelligence, 10</RequiredStat>
<SoundFX>Spell_Heal_01</SoundFX>
<SpellType>Tactical</SpellType>
<SpellClass>Defensive</SpellClass>
<SpellTargetType>FriendlyUnit</SpellTargetType>
<CastTime>1</CastTime>
<SpellResourceCost>
<Resource>Mana</Resource>
<Amount>8</Amount>
</SpellResourceCost>
<SpellDefEffect>
<EffectName>Restoration</EffectName>
<LocalPosition>0,0,0</LocalPosition>
<EffectScale>.75</EffectScale>
<EffectDelay>0.0</EffectDelay>
<SnapToTerrain>1</SnapToTerrain>
</SpellDefEffect>
<GameModifier InternalName="HPModifier">
<ModType>Unit</ModType>
<Attribute>CurHealth</Attribute>
<Calculate InternalName="ExtraHealFromIntelligence" ValueOwner="CastingUnit">
<Expression><![CDATA[[UnitStat_Intelligence]/2]]></Expression>
</Calculate>
<Calculate InternalName="Value">
<Expression><![CDATA[[ExtraHealFromIntelligence] + 2]]></Expression>
</Calculate>
</GameModifier>
</SpellDef>
And that should do it! You can use this code to create a mod, too, but there might be an issue with the game modifiers stacking. Anyway, this will heal for [2 + (Int/2)].