The grind math: what it costs, how many runs, how long.
Per-run estimate: ~1–2 min queue + 3 waves (~5 min) + results & re-register (~1 min). Max reward is 350 MGC at 60,000+ score; lower scores pay proportionally less.
Title for 100 clears. Losses don’t count, so it’s 100 runs at a perfect clear rate.
By clear #16 you can already afford every reward. The rest is for the title.