Gepard is an Ice Preservation character who excels at protecting the team. He provides a strong, party-wide shield and increases his chances of being targeted, drawing enemy aggro away from your damage dealers. If knocked out, he revives with 50% HP and full Energy. This effect only triggers once per battle.
His Skill can inflict Frozen to deal extra damage, but since the damage scales with his ATK, it’s not particularly impactful. It's mainly useful for triggering effects like Acheron’s Crimson Knot.
Best Cavern Relics
(2) Increases Shield Effect by 10%.
(4) Increases Shield Effect provided by the wearer by 12%. When an ally target has a Shield provided by the wearer, the ally target's CRIT DMG increases by 15%.
This is currently his best Cavern Relic set, as it not only strengthens his shields but also enhances the damage of allies protected by them.
(2) Increases DEF by 15%.
(4) Increases the max DMG that can be absorbed by the Shield created by the wearer by 20%.
This set provides everything Gepard needs: durability, Shield strength, and increased team-wide Shield absorption.
(2) Reduces DMG taken by 8%.
(4) At the beginning of the turn, if the wearer's HP is equal to or less than 50%, restores HP equal to 8% of their Max HP and regenerates 5 Energy.
Compared to the Knight set, this set only focuses on reducing damage taken by the wearer. The healing and Energy restoration at the start of their turn is minimal and not very impactful.
Best Planar Ornaments
(2) Increases the wearer's DEF by 15%. When the wearer's Effect Hit Rate is 50% or higher, the wearer gains an extra 15% DEF.
Gepard can benefit from this set as it excels at boosting his DEF.
(2) Increases the wearer's Effect RES by 10%. When the wearer's Effect RES is at 30% or higher, all allies' CRIT DMG increases by 10%.
This set can be considered to boost his party's Crit DMG, though it comes at the cost of lower DEF and weaker Shield absorption compared to Belobog of the Architects. Gepard only needs 30% Effect RES to activate its effect, which can be reached through decent substats on his relics.
Best Stats

Body
DEF% / Effect Hit Rate

Boots
SPD

Sphere
DEF%

Rope
Energy Regeneration Rate
Substats
DEF% / SPD / Effect Hit Rate / Effect RES
info
Gepard should have at least 2300 DEF for stronger shields and 3000 HP for durability. Aim for 50% Effect RES to consistently trigger Belobog’s 2-piece passive. He also needs at least 135 SPD, or his Shield uptime will suffer due to slower Ult generation.
Best Light Cones
SourceStellar Warp, Light Cone Event Warp, Starlight Exchange, Stellar Convergence
Verdict
Increases the wearer's DEF by 24~40% and Effect Hit Rate by 24~40%. Increases the chance for the wearer to be attacked by enemies. When the wearer is attacked, increase their DEF by an extra 24~40% until the end of the wearer's turn.This is currently his best 5★ Light Cone, as it is his signature. It enhances Gepard’s tanking capabilities, making him more effective and efficient in his role.
Sweet Dream
Increases the wearer's provided Shield Effect by 12~24%. When an ally target has a Shield, the DMG dealt increases by 12~20%.This is his best 4★ Light Cone, as it enhances his shield's effectiveness and also boosts allies who are shielded.
SourceLight Cone Event Warp
All-In
Increases the wearer's DEF by 40~64%. When the wearer provides a Shield to an ally, the wearer's CRIT DMG increases by 40~64%, lasting for 2 turn(s). When the wearer's follow-up attack hits an enemy target, there is a 100~160% base chance to increase the DMG taken by the attacked enemy target by 10.0~16.0%, lasting for 2 turn(s).This Light Cone is a good alternative that allows Gepard to take on more than just a shielding role, enabling him to function as a Crit DMG buffer as well.
SourceStellar Warp, Departure Warp, Character Event Warp, Light Cone Event Warp
A New Round of Shuffling
Increases the wearer's DEF by 16~32%. When the wearer is attacked, there is a 100~120% base chance to Burn the enemy. For each turn, the wearer deals DoT that is equal to 40~80% of the wearer's DEF for 2 turn(s).This 4★ Light Cone is a niche option, mainly suitable for Acheron’s lineup due to the Burn DoT it applies whenever Gepard is hit.
SourceStellar Warp, Departure Warp, Character Event Warp, Light Cone Event Warp
Time Fleets Away
The wearer is more likely to be attacked, and DMG taken is reduced by 16~24%.This is a good 4★ option that increases Gepard’s chances of being targeted by enemies.
SourceStellar Warp, Departure Warp, Character Event Warp, Light Cone Event Warp
At This Very Moment
Increases the wearer's DEF by 16~24%. After entering battle, increases All-Type RES of all allies by 8~12%. Abilities of the same type cannot stack.This Light Cone allows Gepard to grant DMG RES to the entire party.
SourceOperation Briefing, Underground Shop, Echo of War, Memo-Keeping Light Casket, Light Cone Manifest
Teary-Eyed
At the start of the battle, the DMG dealt to all allies decreases by 8~16% for 5 turn(s). At the same time, immediately restores HP to all allies equal to 30~50% of the respective HP difference between the characters' Max HP and current HP.Gepard’s team takes reduced damage and restores HP for 5 turns, but the effect doesn’t refresh once it ends.