You can fill this deck with draw or removal, and you'll be merrily committing creatures to the board each turn, while expanding your own board state for free
They are, arguably, in the top ten cycle of mana-fixing lands of all time, and I'd put them in my top five in that list for doing three major and massive things
Obviously at a surface level almost every set mechanic works this way: once you start building around a theme like spellslinger or cat typal or domain, and choosing spells which support or are empowered by that theme, you may as well add more
I like Tifa better, but thats a personal thing, both are good
At the beginning of your end step, draw two cards if you control the creature with the highest power or tied for the highest power
Other creatures you control get +1/+1 for each Aura and Equipment attached to this creature