Forgotten Lockbox: This rare item drops 1 in 33 kills. Opening the lockbox gives you another chance to RuneScape gold obtain Oplate.
Oplate Shards: Collect 450 shards to craft any Oplate piece. Shards provide a form of "dry protection," preventing the grind from becoming unbearable.
Contract of Oplate Acquisition: For the most dedicated players, Yama can drop King Roel Files (1 in 12.1 chance), which contain the Contract of Oplate Acquisition (1 in 133.8 chance). Completing this contract guarantees an Oplate piece.
Each of these methods affects the average kill count (KC) required to complete a full Oplate set, and they interact differently depending on whether you're soloing or duoing the boss.
Soloing vs. Duoing: The Basics
If you kill Yama solo, the odds of getting any Oplate piece are 1 in 200, or 1 in 600 for a specific piece. Using the coupon collector problem, we can calculate the expected KC to complete a full set:
Average KC=200×3×1.83≈1,100
Average KC=200×3×1.83≈1,100
So, purely from direct drops, you'd expect to complete your Oplate set after around 1,100 solo kills.
In a duo, your drop rates scale with your damage contribution. Doing 50% of the damage reduces your odds to 1 in 400 (or 1 in 1,200 for a specific piece). Doing 60% of the damage improves this slightly to 1 in 333.
Time Analysis
Assuming a melee setup:
Solo kill: 6 minutes
Duo kill: 3 minutes
At these rates, the total grind time to complete a full Oplate set is approximately:
Solo: 110 hours (1,100 KC)
Duo 50% damage: 110 hours (2,200 KC)
Duo 60% damage: 91.8 hours (1,800 KC)
This shows that unless your damage contribution is significantly higher than your partner's, soloing or duoing Yama results in buy RS gold roughly the same total grind time.
Oplate Shards: Collect 450 shards to craft any Oplate piece. Shards provide a form of "dry protection," preventing the grind from becoming unbearable.
Contract of Oplate Acquisition: For the most dedicated players, Yama can drop King Roel Files (1 in 12.1 chance), which contain the Contract of Oplate Acquisition (1 in 133.8 chance). Completing this contract guarantees an Oplate piece.
Each of these methods affects the average kill count (KC) required to complete a full Oplate set, and they interact differently depending on whether you're soloing or duoing the boss.
Soloing vs. Duoing: The Basics
If you kill Yama solo, the odds of getting any Oplate piece are 1 in 200, or 1 in 600 for a specific piece. Using the coupon collector problem, we can calculate the expected KC to complete a full set:
Average KC=200×3×1.83≈1,100
Average KC=200×3×1.83≈1,100
So, purely from direct drops, you'd expect to complete your Oplate set after around 1,100 solo kills.
In a duo, your drop rates scale with your damage contribution. Doing 50% of the damage reduces your odds to 1 in 400 (or 1 in 1,200 for a specific piece). Doing 60% of the damage improves this slightly to 1 in 333.
Time Analysis
Assuming a melee setup:
Solo kill: 6 minutes
Duo kill: 3 minutes
At these rates, the total grind time to complete a full Oplate set is approximately:
Solo: 110 hours (1,100 KC)
Duo 50% damage: 110 hours (2,200 KC)
Duo 60% damage: 91.8 hours (1,800 KC)
This shows that unless your damage contribution is significantly higher than your partner's, soloing or duoing Yama results in buy RS gold roughly the same total grind time.
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