As a rule of thumb, you should consider these when they have natural synergies with your commander
With Rivaz on the board, those five mana, three-color Dragons weve looked at so far are trivial to cast
For two blue and two colorless mana, this card can easily shake up a game before it even begins
A few removal spells handle it efficiently, but even if you mana to throw four power in front of it, theres a good chance you only got two or three toughness to block, leaving you a few damage down in the exchange
This card could add some seriously interesting new strategies to existing decks that dont like to be challenged, and would be especially impactful when combined with cards like Prince John from Rise of the Floodborn that also have Ward
Oh, the tough pills that Magic makes us swallow