Firstly, as a control deck you need to know what cards and effects are worth interrupting and negating, and when is best to do so
7 Lion Sash A brand new card from Kamigawa: Neon Dynasty, Lion Sash is one of the set's handful of Reconfigure permanents that can swap between a creature and an equipment artifact
Gideon, Ally of Zendikar (and Friends) Gideon, Ally of Zendikar is the most powerful of the white four-mana planeswalkers, and also offers some great play patterns with its ability to emblem right away, but Elspeth, Knight-Errant and The Wandering Emperor belong in the discussion of most Cubeable white card as well
In fact, one major mechanic from Final Fantasy just got added to Magic: The Gathering, and promises to have a big effect on gameplay
Both have friendly to artifacts, but white is primary in that, and it shows
Big warehouse energy