Tougher Times

Tougher Times is a 'new' item in Risk of Rain 2.

Upon being hit by any damage, including sources like, Shrine of Blood, Passive damage from Void Fields, and REX's own skills, the game will roll against the current stacking of Tougher Times. If the roll is successful, the damage will be negated and a "Blocked!" message will appear instead of damage numbers.

When a hit is blocked successfully, on-hit effects will not happen. These include but are not limited to: explosions from Overloading Elites, bleed, ignite, poison, and weaken. However, the item will not block Void Reaver's death implosion.

Tougher Times is one of the few items in the game with Hyperbolic Stacking, where the chance to block can never reach 100%.

Math
The chance to activate is determined by the formula

The chance to block is not affected by.

Trivia

 * Tougher Times is actually the Risk of Rain 1 item, Tough Times, but in a tattered state.