Domain Zoo is an extremely fast aggressive deck leaning on cheap efficient threats and burn. Most of their key cards are not colorless, so Consign to Memory's colorless-spell mode is limited, but it does hit Scion of Draco, and its Replicate ability lets us counter multiple triggered abilities (like Leyline Binding's ETB or Quantum Riddler's ETB draw trigger) cheaply, which matters against their low curve. Stern Scolding is excellent, countering Ragavan (2/1) and Wild Nacatl (1/1 on the stack) for one mana, and Territorial Kavu while its domain count keeps it at 2 power or toughness or less. It cannot hit Scion of Draco (4/4) or Quantum Riddler (4/6). Spell Snare is cut since Ragavan and Wild Nacatl cost 1, not 2, so it only hits Territorial Kavu and Tribal Flames. Spell Pierce is trimmed because most of their threats are creature spells, which it cannot counter, leaving it with only their burn and Leyline cards as targets.