mtg card draw in red Best Mono Commander If the discarded card wasnt a land card The Best White Card Draw

But this is still true with some newer cards that were never printed in the old frame as well

While Kuldotha Rebirth isnt currently a staple in Modern, it has seen some play in the past, mostly in very aggressive 8 Whack style decks where adding three Goblin bodies to the battlefield for one mana is super valuable, but this might change now that we can play eight Kuldotha Rebirths in our decks

Should I print tokens and emblems too

These are vital in keeping Phenax around and allow you to build around it much easier without having to worry about it dying as much as other "build-around" commanders might need you to

The Treasures from Revel in Riches help soothe this downside by giving you extra mana to work with

It will most likely work better when its Monstrous ability is activated right away and opponents are tapped out