Uriell, the First Flame

Champion one or more red permanents.
If the devotion to red of permanents championed by Uriell, the First Flame is greater than or equal to X, where X is the number listed below, Uriell has the following text:
- 2: Haste.
- 4: Red spells you cast cost {r} less to cast.
- 6: Whenever you cast a red spell, target creature gets +X/+0 until end of turn.