In the early days of Magic: The Gathering's history, the upkeep step was usually reserved for paying costs associated with the eras most overpowered cards, such as Stasis and Juzam Djinn
Pelakka Wurm Rarity: Uncommon TYPE: Creature SUBTYPE: Wurm CMC: 7 Mana cost: USD: $0.14 EUR: 0.12 TIX: 0.02 EDHREC RANK: 8910 (7/7) Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) When this creature enters, you gain 7 life
Its tough to build decks where every creature in the set is Legendary
While you're likely opening packs of Clue Edition to get the new goodies, you'll never be disappointed opening shock lands like Breeding Pool or Blood Crypt
In addition to simply having a great ability, its a wonderful rattlesnake
This may be because they don't have any creature cards, or it may be because you simply don't like any of the creature cards they do have