Super Secret Battle No
You can abuse the fact that it has an enter trigger by bouncing it to your hand with Crystal Shard or Erratic Portal and cast it again, and you can double up on its trigger with Virtue of Knowledge, Reflections of Littjara, and Molten Echoes
Also, an average deck has a lot more cheap spells than expensive ones, so the odds are that most of the spells will be smaller, meaning if your opponent chooses 4 or less, he or she is more likely to hit a larger number of spells in your hand
If you sacrifice a creature with mana value 4, you can cast It of the Horrid Swarm for The cost reduction won't affect the mana of a color, so you'll always pay at least one green mana no matter what the mana value of the sacrificed creature is
Flying, trample , Sacrifice a land: Return Earthquake Dragon from your graveyard to your hand