Amulet Titan relies on Amulet of Vigor to untap its bounce lands and on Urza's Saga for mana and Construct tokens. Wear // Tear covers both: the Wear half destroys Amulet of Vigor, and the Tear half destroys Urza's Saga, which is an Enchantment Land, to cut off its mana and Construct token production. Tear can also hit Spelunking. This is a race against a combo-ish ramp deck where our own speed matters most, so we keep the sideboard plan minimal and only add targeted artifact and enchantment disruption. Wish is the easiest cut since it's the most situational, conditional card in our otherwise lean mainboard.