Since this card cannot be normal summoned, it's effectively useless in your hand. Use "Magical Mallet" or "Reload" to return it to the deck and to draw some cards. You can also use other cards that discard cards to get rid of this such as "Lightning Vortex" or "Raigeki Break". "Solar Recharge" can also be useful for removing this card from your hand, then it can be brought back with "Glorious Illusion".
While "Plaguespreader Zombie" is in your Graveyard, and Wulf is in your hand, you can place "Wulf" on the top of your Deck to summon "Plaguespreader Zombie", and Synchro summon something. Then, at the end of your turn, when you mill for a Lightsworn, you will mill "Wulf", and that will give you a powerful Synchro monster along with a "Wulf".