Give me some advice on my mono steel team im working on for a little mono type tournament a couple friends are having. Or suggest a better type for this, but figured steel would be the best well-rounded.

Scizor@ Scizorite
252 hp/ 252 attk/ 4 SpD
Adamant, technician
-knock off
-u-turn
-roost
-bullet punch

Aegislash@ leftovers
252 hp/ 252 attk/ 4 def
Adamant, Stance Change
-substitute
-swords dance
-sacred sword
-shadow sneak

Bisharp@ focus sash
252 attk/ 252 speed/ 4 def
Jolly, Defiant
-knock off
-sucker punch
-iron head
-swords dance

Skarmory@ leftovers
252 hp/ 252 def/ 4 SpD
Impish, Sturdy
-roost
-brave bird
-spikes
-whirlwind

Excadrill@ choice scarf
252 attk/ 252 speed/ 4 def
Adamant, Mold Breaker
-earthquake
-iron head
-rock slide
-rapid spin

Heatran@ leftovers
252 hp/ 252 SpD/ 4 SpA
Bold, flash fire
-magma storm
-protect
-toxic
-stealth rock