The only other cards with a value of over $1 are: Evolution Sage - $2.09 Thassa, God of the Sea - $1.84 Alandra, Sky Dreamer - $1.76 Herald of Secret Streams - $3.93 Coma, Cosmos Serpent - $2.25 Ripples of Potential - $1.58 Wave Goodbye - $3.98 Sol Ring - $1.44 Swiftfoot Boots - $1.67 Hardened Scales - $1.70 Branching Evolution - $3.59 Karn's Bastion - $1.65 Animated Army - Bloomburrow This red-green deck is all about swinging in at your opponents with huge creatures , while the Commander, Bello, Bard of the Brambles, turns some of your enchantments and artifacts into 4/4 elementals with haste and the ability to let you draw cards if they hit your opponents
Due to this balancing, gameplay in both competitive formats and casual play has become more inclusive of strategies that prioritize a duality of speed and power, as opposed to one or the other
The ceiling just gets higher after that, as she is no doubt a part of a lifegain strategy
Looking over your deck you are at least 1-2 lands short and I would increase Orzhov Basilica to 4 of to give you a pseudo extra land (on average every second game when you should see it)
Still, Isu is a lot of fun from a card advantage standpoint, and could be a cool, if slightly underwhelming, voltron commander with a blink sub-theme