Even Terapagos ex, the set mascot of Stellar Crown, has yet to emerge as a viable option likely due to the steps needed to properly set it up
It also helped define the idea of an Armageddon effect as shorthand for any big, sweeping land destruction play
The high mana cost makes it inefficient, and yes, it's also missing haste
He doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on
Much like every modern era has its own holo pattern, all types of Full Arts have their own style of Full Art
So, it becomes unblockable