Polonium
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Po
Pol
This radioactive element was named by Marie Curie after her homeland Poland. It became famous with the poisoning of the former russian spy Alexander Litwinenko, who changed sides to the british secret service. In 2006 apparently he was given tea containing polonium, after which he died of radiation syndrome.
The monster resembles the eagle from the polish coat of arms. The body reminds of a rocket because the element is being used in nuclear weapons.
A thin film of polonium on a stainless-steel disk:
By Lapp, Ralph E. (1965). LIFE (ed.). MATTER. LIFE Science Library., Fair use, Link
The coat of arms of poland:
Von From Polish Wikipedia. Originally uploaded at pl:Grafika:Godło Polski.svg, Gemeinfrei, Link