Alright folks here it is, the Nintento Trinity
Round 1: Equipment for the Trinity
Mario- Ultra hammer and 1 super mushroom + Fire Bomb
Link- Hylian Shield and Master Sword + Hero's Bow(10 arrows, 5 Fire and 5 Ice)
Samus- Varia Power Suit and Arm Cannon + Charge Beam
Round 2: Trinity gets all their equipment/upgrades
No prep time
Win via death or KO.