Machiavelli then decides to eliminate the Crows. Machiavelli asks the Assassin to track down the Crows and kill them. The Assassin identifies an undercover Crow and follows him to a Crow meeting, where he kills all of the Crows. After the Assassin kills the Crows, Caterina Sforza and Machiavelli are told that the Borgia were attacking Forlí. During the attack, several of Machiavelli's spies are captured. However, the Assassin manages to free most of them before they are executed. Machiavelli then decides to watch the attack from a tower. However, he is hit by an arrow, which knocks him into the moat. Borgia guards then capture him and bring him to a small church outside of the city. However, one of Machiavelli's spies witnesses Machiavelli's capture and informs Ezio, who promptly informs the Assassin. While Ezio distracts the guards, the Assassin frees Machiavelli. Later, Machiavelli expresses his opinion that all of the remaining Crows were killed or scattered during the attack on the city. The game allows players to customize their assassin from four classes: the combat-orientated Berserker, the stealthy Shadow Blade, the jack-of-all-trades Trickster and the agile Thief. Each class has its own set of skills and perks, like Splinter Bomb and attack upgrades for Berserker and Smoke Bomb and notoriety upgrades for Shadowblade, which can be unlocked through currency and skill points at the skill tab. Skill points are earned by leveling up, and using enough skill points unlocks a new Tier of skills for each class, with four Tiers total.. Each Assassin can have both a primary and secondary class, with the secondary class unlocked through currency. The player can also unlock multiple Assassins through currency, although the Inventory is shared among Assassins. In the inventory tab, the player can equip Swords, Chest Armor, Pauldrons, Hidden Blades, Leggings, Insignias, Boosts, and Outfits. Boosts are bought in the shop, and provide temporary buffs. Items can either be bought in the shop, earned in-game, or crafted using Blueprints at the Forge tab, and provide stat increases to the player. Outfits can be unlocked through Achievements or bought in the shop, and gives buffs and a different visual appearance for the Assassin equipped. In the shop, players can use the Heroic Shop, Items, Forge, Boosts, and more tabs, including IAP tabs.