Hell also return any bombs that your opponent may have been able to banish
Honestly, even without Dryad Arbor, Im a little afraid of it in Devoted Druid combo decks, but at least Im only really worried about it there and not also in Infect, G/W Hexproof, Primeval Titan strategies, any Tarmogoyf deck, etc etc
Ponder was banned primarily to keep combo decks in check by making them less consistent, but remember: this was back during an era of Magic when Storm was consistently one of the top-performing decks in the meta
Hell, even Dimir KeyruneDimir Keyrune is in the deck because it can be turned into an unblockable Horror for 2 mana
Beanstalk Giant // Fertile Footsteps Putting extra land onto the battlefield, aka ramping, is one of the most powerful things you can do in MTG, especially in commander