Abusive Sergeant is a minion card which lets you give a friendly minion on the board +2 Attack but only for the duration of that turn.
Abusive Sergeant is a bread and butter of every single Aggro Deck, many Zoo decks, and also some control decks like Malygos Warlock, where it's used as a catalyst to remove enemy minions used together with Big Game Hunter.
A 2/1 body for 1 mana is good value for doing early game damage to enemy hero if not removed straight away, and the card instantly grants a small burst of +2 Attack to another minion on board, making it possible to hit the other player harder or go through a troublesome, high HP taunt minion with less effort or to remove a bigger threat. Its battlecry effect lasts only until end of turn, so careful planning on who to apply the effect is highly advised so it doesn't get wasted.
The bonus attack works especially well with creatures with Windfury, as they are able to attack twice, benefiting from +2 attack twice in one turn before the buff expires, basically doubling the effect Abusive Sergeant has. Other strategic minions to use this card with include 0 attack minions like Nerubian Egg or Dragon Egg, making it possible to hit with the minions and use their special effects. Another way to use the buff from Abusive Sergeant is to play Crazed Alchemist to swap the temporary +2 Attack into a permanent +2 Health. Same way you can drop a Void Terror and the minion previously buffed by the +2 Attack will be destroyed, making the +2 Attack from Abusive Sergeant permanent on Void Terror.
The attack bonus can also be cast on enemy minions (it will expire by the end of your turn, so dropping Abusive Sergeant and buffing enemy won't have a negative effect for yourself) to buff them over desired amount and kill them using for example Big Game Hunter or Shadow Word: Death.
|Big Game Hunter||Epic||Neutral||Minion||General||3||4||2||Battlecry: Destroy a minion with an Attack of 7 or more.|
|Nerubian Egg||Rare||Neutral||Minion||Naxxramas||2||0||2||Deathrattle: Summon a 4/4 Nerubian.|
|Dragon Egg||Rare||Neutral||Minion||General||1||0||2||Whenever this minion takes damage, summon a 2/1 Whelp.|
|Brann Bronzebeard||Legendary||Neutral||Minion||3||2||4||Your Battlecries trigger twice.|
|Shadow Word: Death||Free||Priest||Spell||General||3||Destroy a minion with an Attack of 5 or more.|
Get in there and fight, maggot!-Summon ()
Suffer my wrath!-Attack ()