Fenix (Dragoon), Fenix (Zealot) or Dark Templar (Hero) -
Vi3t-XI would prefer Dark Templar, since it fits the spells more.
Spell OneNinja Shuriken - The hero becomes invincible for a split second, and a spider mine is placed underneath. If it doesn't hit within an allocated amount of time (preferably the enemy isn't within reach), it is replaced by the hero.
Spell TwoLOL INFERNO - If lil-Inferno is present, he is instantly reduced to 1% base hp, and moved directly to Viet.
Spell ThreeShadow Minion - Summons Dark Templar (Regular) [if the unit is taken, halucs?], to aid the character. The unit will have the same name, and same stats (aside from damage), so the enemy will have to look at the unit damage to find out who is who. (You could make me have extremely low hp, but high damage). Maybe this is better for a final.
Spell FourCarpe Nocturne (Seize the Night) - All player owned units will be rendered invisible, unless detectors are present.
Spell FiveGENERIC ATTACK - Temporarily orders the Dark Templar to hold position, while Gun Turrets are moved underneath, shoot, and moved back.
Spell SixDM SUX - If Dark_Marine is present in the game, everyone is warped to the center of the current arena, and Dark_Marine has base hp reduced to 1%.
Idea for the game though, what if we make sight an important factor?
For example, you could turn light switches on and off (Benificial to units that have cloak).
You utilize local stuff like pots and pans?
None.