Uploaded 1.6 with the fix for the enriched land. Also finished the "polish" on all the tactical spells (everything should work now)
Grim Defiance - Tooltip changed to reflect in-game use - that units trained in the city start with 10% more health.
Burning Blade - Increases the target's attack for 1/3rd of caster's intelligence for 3 rounds (improved by fire shards)
Shield of Fire - Increases the target's defense for 1/3rd of caster's intelligence for 3 rounds (improved by fire shards)
Freeze Enemy - Area of effect with 25% chance for each enemy to lose their turn
Quicken - Now appropriately a Strategic buff, not a tactical spell
Haste - now increases combat speed by 1 for 3 rounds
Slow - now reduces combat speed by 1 for 3 rounds
Good Luck - now increases targets dodge chance by 33% for 3 rounds
Also included is now HF106_spell_Shardproof_Spellbooks.xml because it became impossible to fix some of the spells by overwriting, so I had to create new internal spell names. The spells that required fresh internal names were Burning Blade, Shield of Fire, Haste, Freeze Enemy, Good Luck
The BIG problem with passive buffs like these is that they all stack, and there's no way to avoid that in tactical combat. That's why you're seeing "nerfed" versions of what was in the core files (no more *2^4 defense for 8 mana). That's why I avoided "add 25% damage" altogether - with 3-4 casters you could create an unstoppable monster. You still can, only it won't be nearly as strong.
Edit2: Damn... forgot about good luck. Oh well, don't stack it unless you're a cheat. Will fix in next release.