The latter will destroy any three targets, but not lands
In a game where you are putting down a lot of permanents, this makes it harder to do and leads to crowded spaces due to having your opponent spread out their cards to avoid Chaos Orb falling on them
Having options is good, and this hydra made it into various Standard decks and green EDH decks, especially with +1/+1 counters synergies
Looking at this list, that's an understandable belief
Then, trash the same number of cards from your hand
Market Value (based on PriceCharting.com ): Ungraded: $329.06 Grade 7: $290.00 Grade 8: $304.29 Grade 9: $348.56 Grade 9.5: $500 PSA 10: $788.97 The second most valuable card to come out of this set is Eevee #188, an Illustration Rare that currently has a market price of about $80, give or take