Deathless Danava

Dreadful (This creature can only be blocked by creatures with total power greater than or equal to this creature's toughness.)
Undying (When this creature dies, if it had no
+1/+1 counters on it, return it to the battlefield under
its owner's control with a +1/+1 counter on it.)
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Asuras, especially the danavas, are able to channel
strength from powers that would kill mortals.