Overview
Obsidia is a unique hero in Mobile Legends: Bang Bang (MLBB) with a powerful late-game scaling potential. Similar to heroes like Cecilion and Granger, the Sovereign of Dark's End relies on constantly hitting or killing targets to build up her Passive: Return to Bone.
Strengths
Her passive enhances basic attacks, providing an additional hit based on the number of stacks. This makes her a powerhouse when paired with on-hit effect items. Her Ultimate is a good chase mechanic where she sticks to enemies, making it nearly impossible to shake her off. This can be an advantage or a disadvantage, depending on who the target is.
Weaknesses
If you have to deal with an enemy Obsidia, heroes that can move fast and stun-lock targets like Chou or Guinevere are good counter picks. If you are laning against her in the Gold Lane, heroes like Granger, Irithel, Moskov, or Lesley are good picks that can kite her easily. Basically, any hero that can close the gap is a good pick against her. She doesn't have much mobility, and she needs to keep a distance from her targets. If you enjoy assassins, heroes like Saber, Fanny, Joy, Ling, and Lancelot are also good counterpicks. They have enough burst damage from their combos to quickly eliminate Obsidia before she can escape or counterattack.
Obsidia Best Build
Your goal is to spam your Skill 1, rapid-fire your basic attacks, and get as many stacks as you can. Start with Magic boots for the extra Cooldown. Follow it up with Corrosion Scythe for the stacking damage and on-hit slow, on top of gaining a bit of attack speed. For your mid-game items, start with Demon Hunter Sword to start dealing more damage based on enemy HP. However, you can also swap this with a Sea Halberd if the enemy team has a solid healing or shield lineup. The next item will be the Golden Staff for even more attack speed.
Obsidia Real Emblem
Placing Swift in the first slot is self-explanatory. You need as much attack speed as you can get without compromising on damage. The second slot can be Weapons Master to further increase Obsidia's damage, including her Bone Shard attacks. For the final slot, go for the Weakness Finder for the on-hit slow and attack speed reduction effect.
Battle Spell
For the Battle Spell, you need some extra mobility, for Purify when the enemy team has a lot of Crowd Control effects.
Easy combo tips to learn
Obsidia gains Bone Energy with each target hit, except jungle creeps. Try to hit multiple targets with her Skill 1: Abyssal Bone Needle at once to maximize the effect. Even better if you can hit multiple heroies for the most Bone Energy gain. Avoid using your Ultimate on enemies with Vengeans or skills with a similar mechanic like Belerick. You're going to have a bad time as you get hit with damage reflection effects. Focus on targeting the back line heroes like mages or marksmen.
Best With Angela
Angela is the perfect match for Obsidia very good compatibility to easily eleminate the enemies, using Angela's ultimate.
Watch Out For Lesley
Lesley are good picks that can kite her easily. Basically, any hero that can close the gap is a good pick against her. She doesn't have much mobility, and she needs to keep a distance from her targets.