You could really lean into the Voltron aspect of it and add more and more enchantments to make Toski a combat threat
Blightsteel is a much better threat but equally answerable and even more reliant on big mana effects
Taeko, the Patient Avalanche Taeko, the Patient Avalanche joins Kappa Tech-Wrecker as Magic's ninja turtles
The idea behind Vanguard cards was that it was a card external to your deck that adjusted your starting life total and hand size, and then granted you an ability usable during the game
If you recall, Rampant Growth is a card that was deemed a little too powerful for Standard formats, which is why we actually get Sami's Curiosity instead, ensuring that if you draw it a turn too late, you'll have to pay the price for it
For lower-end collectors there is plenty of availability in played condition cards