Answer :
Final answer:
The Stardust Armor grants the highest minion capacity, increasing it by 5, thus it is the best choice for players focusing on summoning in Terraria.
Explanation:
The armor set that grants the highest minion capacity in Terraria is the Stardust Armor. When the full Stardust Armor set is equipped, it increases your minion capacity by 5. This allows players who focus on summoning to have a larger number of minions compared to other armors such as the Tiki Armor, Spooky Armor, Necro Armor, or Hallowed Armor, which provide different bonuses. The Stardust Armor not only enhances minion capacity but also boosts minion damage, making it the most desirable set for players looking to maximize their summoning potential.
For comparison, the Tiki Armor increases minion capacity by 4 when wearing the full set, while Spooky Armor increases your minion damage significantly but provides less additional minions than the Stardust set. Necro and Hallowed armors are not specialized in summoning capabilities and thus provide lower bonuses for minions.