When Strahd was wandering Barovia, he saw Ireena and realized that she was the reincarnation of Tatyana's soul (souls that have been reincarnated tend to look like the original bearer of the soul (See image below)). He managed to drink her blood twice and Kolyan's heart failed him during these attacks.
Brave: The gladiator has advantage on saving throws against being Frightened.
Brute: A melee weapon deals one extra die of its damage when the gladiator hits with it (included in the attack).
The gladiator makes three Melee Attacks.
Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) piercing damage
Melee Weapon Attack: +7 to hit, reach 5 ft., one creature.
Hit: 9 (2d4 + 4) bludgeoning damage. If the target is a Medium or smaller creature, it must succeed on a DC 15 Strength saving throw or be knocked prone.
Parry: The gladiator adds 3 to its AC against one melee Attack that would hit it. To do so, the gladiator must see the attacker and be wielding a melee weapon.
Dark One’s Own Luck
You can call on your patron to alter fate in your favor. When you make an ability check or a saving throw, you can use this feature to add a d10 to your roll. You can do so after seeing the initial roll but before any of the roll’s effects occur.
Once you use this feature, you can’t use it again until you finish a short or Long Rest.