Archon, The True King

first Strike, vigilance,
When Archon enters the battlefield create
2 1/1 knights
Other Knights you control get +1/+1 and reach
When Archon attacks create X 1/1 knights
where X is the number of Knights you control
If Archon were to die by combat damage, instead prevent that much damage and sacrifice
Knights that toughness add up to the damage
dealt to Archon. (if you can't he dies)