While tempo decks do want to play on the front foot and be the one swinging sideways, it is also important to be able to play defensively when youre behind
Theres also the option to play with background music
To make it worse, if the opponent adds a card to their hand, you can make them banish a random card from their hand
The second and third abilities of Champions from Beyond don't care what happens to those creatures after you attack with them
Danitha, New Benalia's Light Selesnya colors on Danitha, New Benalia's Light would suggest auras more than equipment, especially since auras tend to go to the graveyard more often
The 3-for-1 is potentially worthwhile, though Id limit Agency Outfitter to decks that dont hate drawing the two artifacts on their own