Omnious the Born Nova

Double-Strike, Flying, Protection from Flying
Gain 1 life every upkeep.
If Omnious is destroyed or exiled, create a 1/1 token that is a copy of Omnious, except this effect cannot be used
{1}{b}{w}{t}: Pay 1 life, return a card from your graveyard to your hand
{2}{w/b}: add a +1/+1 counter to Omnious for each life gained this turn
{5}{w/b}{w/b}: Mark target creature, artifact or enchantment. Destroy all unmarked non-land permanents