It costs and has the following abilities: Flying, hexproof Whenever Storm, Force of Nature deals combat damage to a player, draw a card for each creature you control with flying
The other reason this card is great is that it can be copied easily, being non-legendary, which means you can achieve aerial superiority provided you have enough pilots around ready to fly
I'd compare it to something like Gravecrawler + Phyrexian Altar
Even outside of that, Culling Ritual is a great tool to get rid of common mana rocks, draw engines like Mystic Remora, as well as any other powerful cards that come into play quickly
What possible problem could that cause
Players still tried, but it was just not an efficient attacker because of its attack cost