It's effect is on-going, and you can build around it with artifact creatures or things you can't target (like Protection from Black) or indestructible stuff that can't be destroyed at all
Here are a few helpful hints to guide you: Research market trends regularly to maintain up-to-date valuations
Since the formats inception, the key question in Modern has always been, What are the linear decks of the day, and can the midrange decks properly sideboard for enough of the linears? Were talking about decks with names that cause many a Modern player to groan: Affinity Infect Twin Eggs Dredge Storm Burn Tron Lantern Arrayed against these unfair, one-sided boogeymen lie fair decks (all named after their color combinations) like Jund, Jeskai, Abzan, Grixis, and U/W Control
Anywhere that The Lost Caverns of Ixalan s Sovereign Okinec Ahau is legal is a good bet
This artifact card will add two colorless mana, effectively boosting you to turn three
You see, Goldeen is one of the original 151 Pokmon the deeply nostalgic ones I grew up with as a kid and in nearly three decades of the TCG, Goldeen has never been the subject of a full-art card