Dark Star Reroll: Low-Cost 3-Star Strategy

A low-cost reroll composition built around 1-cost Dark Star units. Fast to complete, high 3-star probability, easily win streak early with multiple 2-star low-cost units. Positioning: front-line tanks spread out to absorb damage, back-line Lissandra and Veigar provide burst damage. The percentage bonus from the Dark Star trait allows low-cost units to deal high damage.

Item AllocationMain Carry Lissandra: Jeweled Gauntlet (skill crit) + Blue Buff (mana regen) + any AP item (Rabadon's Deathcap or Hand of Justice). Secondary Carry Mordekaiser: Titan's Resolve + Steadfast Heart + Edge of Night (improves tankiness and damage). Main Tank Cho'Gath: Warmog's Armor + Bramble Vest + Sunfire Cape. Veigar gets Dark Star Emblem (essential) then AP items.Strengths① All low-cost, easy to 3-star, extremely strong after 3-star; ② Dark Star at 4 provides 45% AD/AP bonus, making 1-cost units deal damage comparable to 3-cost; ③ Double Bruiser + Double Vanguard provide sufficient frontline tankiness to protect backline; ④ Sorcerer combined with Dark Star triggers skills twice, providing ample burst.Weaknesses① Falls off late game, relies on 3-star quality; if multiple 3-stars are not achieved, damage is insufficient; ② Vulnerable to AOE control and burst compositions, front line can be melted easily; ③ Lacks sustain, mediocre in prolonged fights.Early Transition StrategyStart by prioritizing Sparring Gloves and Tear of the Goddess to craft Jeweled Gauntlet or Blue Buff. At 2-1, level to 4, field Cho'Gath, Lissandra, Leona, and Rek'Sai for 2 Bruiser 2 Vanguard. If Veigar appears, swap him in directly for a low-cost unit. At 2-5, level to 5, add Veigar and give him Dark Star Emblem. Do not roll, save gold until 3-1. At that point, with all 5 units at 2-star, you can win streak.Composition OperationFrom 3-1, start heavy rolling to 3-star all 1-cost units (Cho'Gath, Lissandra, Leona, Rek'Sai, Veigar). Also roll for Mordekaiser if possible. Be mindful of interest; typically keep 10-20 gold. If a unit is close to 3-star, roll more. Do not level to 6 until at least 3 units are 3-star. Then level to 7 and add any front-line unit (e.g., Illaoi or Maokai). If Dark Star Emblem has not appeared yet, consider adding Kai'Sa for 5 Dark Star (not recommended). Prioritize items for the main carry, give spare tank items to Cho'Gath.Alternatives① If Dark Star Emblem is not obtained, you can drop Veigar and add Kai'Sa (3-cost) to keep 4 Dark Star, but this lowers the reroll ceiling; ② You can replace Leona with Pantheon as front line while activating 2 Sorcerer, but Pantheon is 2-cost and harder to 3-star; ③ If HP is healthy late game, you can level to 8 and add 5-cost Dark Star Jhin to activate 6 Dark Star, significantly boosting late-game strength.