Domain Zoo relies on small aggressive creatures like Wild Nacatl and Territorial Kavu plus Leyline Binding and burn spells, and Brotherhood's End sweeps their early board for 3 damage while they're still developing. Their Stubborn Denial and Spell Pierce are soft counters that our rituals can often play around by overloading mana, so there's limited need for protection spells like Silence against a deck without hard counters. Artist's Talent is too slow against this aggressive, low-curve deck. Keep the combo core intact to race before Scion of Draco or repeated burn closes the game.