Death and Choices- What's the Play?

My play for this Death and Choices would be to, in response to the opponent's Flickerwisp trigger, to activate Eldrazi Displacer. Eldrazi Displacer's activation would target our Restoration Angel, which would have its own blink trigger. Restoration Angel's blink trigger will then target Eldrazi Displacer, resulting in the Eldrazi staying on the battlefield. I will bring in the Blade Splicer off of Aether Vial after the opponent has declared their attackers (assuming they attack with creatures).

The reason I would make this play is to prevent the Eldrazi Displacer from getting exiled by the opponent's Flickerwisp's ability. If the opponent gets to do it, they get to make a very powerful play on their upcoming turn. The play is that their Eldrazi Displacer targets their Wasteland Strangler. When the Wasteland Strangler enters the battlefield, it gives -3/-3 to our Thalia, Guardian of Thraben (assuming Blade Splicer is not in play). The card the opponent puts into our graveyard is our Eldrazi Displacer. At the end of their turn, Flickerwisp's trigger does not return Eldrazi Displacer to the battlefield, as it is no longer exiled under Flickerwisp's ability. The other line I considered was bringing Blade Splicer into play and blinking it with Eldrazi Displacer to make two Golem tokens. If you do this, it is best to do it right away, as Eldrazi Displacer is unlikely to return. My main issue with that play is that, without Eldrazi Displacer, we lack a way to out-grind the opponent. With Eldrazi Displacer in play, however, we can be both aggressive with Restoration Angel and generate value through Eldrazi Displacer plus Blade Splicer.