If you hit a one drop, all one-mana cards go back to everyones hands, making it a great way to deal with all sorts of scenarios
In fact, Bahamut actually translates to "behemoth" in Hebrew
Since Mage Slayer has the creature deal damage equal to its power , Wolverine will double that burn damage

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Memory Plunder [Wizard deck]: Can be really good, and can be useless
In effect this means you are losing a bit of card advantage to gain the tempo which is generally a fine thing to do