Attacks have a 7.5% chance to create an icicle, which is stored and waits to be fired. Stored icicles passively increase mana regen by 1 per second each. Maximum of 5 icicles. At maximum icicles, any more icicles created are instantly fired at the target. Each icicle deals 300% attack damage.
Level Bonus: +0.2% chance +4% damage +1 max icicle every 5 levels
Cascade
Hits have a 15% chance to create an icy explosion at a random point within 250 range of the attacked creep, dealing 35% attack damage in 150 range. Each explosion has a 15% chance to cause another explosion, up to a maximum of 4 per attack.
Level Bonus: +0.4% chance +1.4% damage
Shatter
Spends all mana to encase the target in ice, stunning it and increasing damage taken by 100% for up to [mana / 150] seconds. All icicles are then fired at the target. Duration is reduced by 75% on Bosses, to a minimum of 2 seconds.
This topic was automatically created for the discussion and updating of Ebonfrost Spire v1 Author's comment about this tower:
Reworked Ebonfrost Crystal.
Simplified.
Now pure attack based.
Fixed autocast instakilling the target.
Cascade (previously Bombardment) is no longer projectile based for visibility reasons.
Removed Frostburn damage type.
Icicles 
Cascade 
Shatter