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'This creature enters with X +1/+1 counters on it.
'Echo {2}{R}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
'{X}{X}{1}: Destroy target artifact or creature with mana value X.
'When this creature enters, creatures without flying can't block this turn.
'Flying
'{U}: Put this creature and each creature blocking or blocked by it on top of their owners' libraries, then those players shuffle. {3}{U}{U}: Target creature blocks this creature this turn...
'Choose one —
• Counter target blue spell.
• Destroy target blue permanent.
'Flying
'Flying
This creature can block only creatures with flying.
'Echo {2}{R}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)