Abdel Adrian, Gorion's Ward | Preston, the Vanisher | Fiend Hunter

(and one other card)

Cast
Essence Flux by paying ({U} magic symbol) , blinking
Fiend Hunter.
When
Fiend Hunter enters the battlefield, its first ability and
Preston trigger.
Resolve the
Fiend Hunter trigger, exiling
Abdel Adrian.
Resolve the
Preston trigger, creating a copy of
Fiend Hunter that is a 0/1 Illusion.
When the token
Fiend Hunter enters the battlefield, its first ability triggers, exiling the nontoken
Fiend Hunter until the token
Fiend Hunter leaves the battlefield.
When the nontoken
Fiend Hunter leaves the battlefield, its second ability triggers, returning
Abdel Adrian from exile to the battlefield.
When
Abdel Adrian enters the battlefield, it and
Preston trigger.
Resolve the
Preston trigger, creating a token copy of
Abdel Adrian that is a 0/1 Illusion.
Put the token
Abdel Adrian into your graveyard due to the legend rule.
The token
Abdel Adrian's enters-the-battlefield ability triggers, choose not to exile a permanent.
Resolve the
Abdel Adrian trigger, exiling the token
Fiend Hunter and creating a 1/1 Soldier creature token.
When the token
Fiend Hunter leaves the battlefield, it triggers, returning the nontoken
Fiend Hunter from exile to the battlefield.
Repeat from step 2.