Uldir, Unleashed Storm Mage

Instant and sorcery spells you cast cost {r}{u}
less to cast (This reduction can be applied to
colored and generic costs)
You may cast sorcery spells as though they had
flash
When you cast an instant or sorcery put a storm counter on Uldir
Remove 3 storm counters: Add {r}{r}{u}{u}
to your mana pool