Legendary Creature — Pest

Other Pests, Bats, Insects, Snakes, and Spiders you control get +1/+1.

When Blex, Vexing Pest dies, you gain 4 life.

Pests are typically harvested before they outgrow their enclosures. Blex is far from typical.

3/2

Search for Blex {2}{B}{B}

Sorcery

Look at the top five cards of your library. You may put any number of them into your hand and the rest into your graveyard. You lose 3 life for each card put into your hand this way.