Transformational Sideboard.
Man plan is one way (
Monastery Mentor and friends).
My preference is this. Board into:
+3
Helm of Obedience
+3
Rest in Peace
If you can't beat em, join em. What's that? You're boarding in gravehate? OK I will too.
If any UW decks board in RiP against us, we are laughing, they are literally playing our own combo piece for us.
A shell of 4 Brainstorm, 4 Ponder, 2-4 Preordain, and 3-4 Enlightened Tutor is perfect to assemble another artifact+enchantment 2-card combo.
We also have the option to play
Energy Field as protection (which is turned on by the opponent's
Leyline of the Void!!).
Who will see it coming? They'll board in gravehate and stormhate. Game 3 we can either keep RipHelm or go back to Breach. By switching gears, we reduce the optimization of the opponent's deck. They will board out cards they should keep and board in useless cards, even mulliganing into them!