• Skill 2 Stun Damage Boost is by far her strongest trait. Only affecting her Skill 2, Ryza has nothing to worry about since her Burst is an automatic stun regardless. It is possible to get two of these traits in a single piece if you have access to Ryza: Brave Blaze.
• Stun Damage Up on Weakness is actually just as strong as the one above but this one only works against enemies weak to Slash. Fortunately, Ryza applies this effect before her Skill 2 actually deals stun damage, so she can turn neutral enemies into weak ones. With help from memorias and gear, she can turn resistant enemies too. It is possible to get two of these traits in a single piece if you have access to Magda: Pinkish Destroyer.
• Regular Physical Stun Damage Boost trait is slightly weaker but is the easiest to acquire for most players. It is strong enough too as alternative.
• Stun Damage Boost and Stun Damage Boost [Full] are weaker alternatives in almost every scenario. Usable in earlier stages of the game but not recommended otherwise.
• Enhanced P./M Resistance Down is a very low priority trait, more than doubling the effect of the effect of Radiant Coronet. It’s good, if you can afford the stun damage loss.
• Enhanced Damage Buff [A] is another very low priority choice, only used when equipped with memorias like Our Masterpiece. Gear pieces like Pointed Iron Staff and Shadow Walkers will also benefit from this. Used mostly alongside magic allies that will not benefit from any of her main debuffs except for her generic damage taken one.

Ever since her release Ryza has been a staple of a breaker in the game. With a high Speed stat she is very flexible in what positions she can occupy in the turn order with just a change of accessory or memoria, allowing her to act first or fourth as her team requires her.
Her Skill 2 will damage and apply powerful slash resistance and damage vulnerability debuffs to all enemies at once, especially strong when assisting Slash affinity AoE damage dealers like Lara: Queen’s Grace, Logy: Alchemist of Dusk and Lanze: The Captain Awakens, but not restricted to this damage type or range alone. The damage vulnerability effect will boost all damage of any type from the follow up hit. Additionally, this skill will apply any on-hit effect on her gear, most notably pieces like Divinity’s Edge, Vitality Shirt, Radiant Coronet, Vivid Scarf and Vowed Ornament.

Her Burst was the first iteration of the forced break mechanic in the game, automatically guaranteeing a break on a single-target, under any conditions. This mechanic will likely never be obsolete, especially as enemies become harder to break, and is a very handful replacement in most if not all versions of Roman Tournament or even Affinity Towers 21+ if you don’t have another on-affinity breaker to perform the role.
Additionally, this Burst will apply a permanent 20% damage vulnerability debuff on the enemy that can stack up to 40% in total. This effect is a massive boost to all damage that never leaves and will stack with all her other debuffs.

All her attacks deal damage so she is a disruptive character that will conflict with other short duration debuffs from the team. Because of this, it’s best to pair her with characters like Escha: Sweet Monochrome or Klaudia: Fragrant Elegance, whose debuffs last for 2 hits. Purposefully making Ryza slower than Escha will ensure they will not clash against each other, letting your damage dealer take advantage of all their effects together.

Ryza has access to one of the strongest itemizations and team building options in the game, letting her act as a very offensive debuffer or even as a buffer, while retaining her main breaker role intact and, with the help of characters like Ryza: Blooming Energy, even gain access to the Initiative tool, a powerful effect that will let her act before any enemy or ally bypassing the normal turn orders, and unleashing some very fun and useful strategies.