A monster in Limited and a card that teetered on the edge of being banned in Standard during its time
As it is a creature, Esper Sentinel lets you alter its power and toughness with +1/+1 counters, enchantments, and artifacts
Any "as [this creature] enters the battlefield" or "[this creature] enters the battlefield with" abilities of the chosen creature will also work
This undead variant of god card continued with the zombified God-Eternals in War of the Spark , and Ilharg, the Raze-Boar (a deity unrelated to Amonkhet or Bolas) coincidentally also returned from the dead for that set
Plus, if you attack the player with the most life, you get one extra combat phase
PrintMTGs proxy/playtest cards are designed around that in-sleeve consistency idea: standard MTG sizing, familiar feel, and predictable finishing so your deck doesnt end up with one card that behaves like its trying to get caught