mtg ur dragon commander deck Scion of the Ur-Dragon the Avenger Bladewing the Risen MTG Proxy Ready-to-Play Commander Deck:

You cannot go too overboard on pure support cards as you are still a red deck

Harsh Mentor isnt a bad card but feels like it doesnt serve much of a purpose in this deck, the same as Gimli of the Glittering Caves

Goblin Tomb Raider It may not be Lara Croft, but its just as good at sprinting in early to whack an opponent for 2 damage right up front

This can be seen in the left image, where the mana symbol is a solid black, contrasted with the right image, where the mana symbol contains colorful flecks in the black design

Rapunzel, Gifted with Healing Card draw, healing, defence and lore - what more can you ask for

Mono white makes it a little harder but there's still plenty of blink to get some serious value here, and then you can deal with problematic permanents