Like Droll & Lock Bird it stops a card being added to your opponent's hand from their deck, but it also prevents summons from the deck and stops monsters being placed in the graveyard for later revival.
Metang HSUnleashed / hgss2-33 Card Sets Energy Crane: 0 Search your discard pile for up to 2 Psychic Energy cards and attach them to your Pokmon in any way you like
With types that range from zombie, to Warrior, to Dragon and spell caster, listing all of the categories would take all day, and thats not even counting special summons such as Ritual and Fusion monsters
Thunderclap Drake's second ability doesn't change the mana cost or mana value of any spell
You can do similar things with bouncelands like Karoo and Guildless Commons but the Field is my favorite
While Goddess of Sweet Revenge is the only card in your hand or field, you can discard it from your hand to prevent an attack, while also destroying every single card your opponent controls