A Zebra Bloon as a Bloon is hardly a threat with its 2 delay for only 180 health, but the dual card effects allows for more total draws in a single card (up to 4 per Zebra card), in addition to generating a lot of Bloontonium. However, the cost and draw power makes it hard to use in the early-game and more prone to bricking. It's more often useful for the mid-game where it's more affordable and cards may be played more often.
Costing 7 Gold, playing a Zebra and Rainbow Bloon give exactly enough Bloontonium for Adora's Ultimate Sacrifice.
Unlike the White Bloon and Black Bloon, the Zebra Bloon is an Uncommon, and thus cannot be drawn by Rare Power.