Spell Lock

Spell Lock
Spell Lock Warlock pet ability 30 yd range 200 mana 24 sec cooldown Instant Silences the enemy for 3 sec. If used on a casting target, it will counter the enemy's spellcast, preventing any spell from that school of magic from being cast for X sec.
Usable by
Class	Warlock
Pet	Felhunter
Properties
School	Shadow
Cooldown	24 sec
Related debuff
Magic Spell Lock Silenced. Duration: 3 seconds

Spell Lock is a Warlock Felhunter skill, best described as a hybrid of [Silence] and [Counterspell]. When used, it will silence its target for 3 seconds; if the target was in the process of casting a spell, however, then the spell will be interrupted and, depending on Spell Lock's rank, the target will be unable to cast a spell from the same school of magic for either 5 or 6 seconds. This is an instant-cast ability with a 24-second cooldown.

Rank Table

Rank	Level	Mana	Silences for:	Locks for:
1	36	120	3 sec	5 sec
2	52	200	3 sec	6 sec

Tips and Tactics

Spell Lock, like all of the Minion skills, can be set to Auto-cast; however, as the AI will normally use this skill to immediately [Silence] its target, rather than attempt an arguably more beneficial interrupt, it might be more viable to disable this. Disabling auto-cast will allow the Warlock to decide if a spell is worth interrupting, or if the target is enough of a threat to use an interrupt on.

Use of this skill will usually force an NPC caster to enter melee combat, where they are at a considerable disadvantage.

Patch changes

• Patch 2.1.0 (2007-05-22): Duration reduced to 5 seconds (rank 1) and 6 seconds (rank 2), and cooldown reduced to 24 seconds.
  
• Patch 1.7.0 (2005-09-13): In addition to interrupting spellcasting, it will now silence the target for a short duration.