Neat card
Remember, lands are one of the most essential card types and this set is near capacity on great lands
Instant spells such as Tyvars Stand, Perplexing Test, Silkguard, Decisive Denial, Quandrix Charm, and Quandrix Command all offer counters to opponents' spells or a way to protect creatures from removal, so ensure these are used at the right time to protect your Commander or any huge creatures youve built up
Second, because Ovika makes goblins, you can play the payoffs and accelerants for your monored goblins decks in here, like Skirk Prospector, Moria Marauder, and Brightstone Ritual
So always remember to practice safe Rule Zero (talking with the other people at the table to discuss power levels and what kind of game everyone is looking to have)
As long as you can consistently hit a decent-sized creature and make sure that the combat trick aspect of the card gets value, its hard for Yunas Whistle to be anything worse than good