Although these three are somewhat fair cards, WotC learned a lesson the hard way of not printing card draw in delve spells like Treasure Cruise, since those are really problematic
Admittedly, Phylath pushing you toward basic lands during deck construction is a bit annoying, but the massive number of creatures it makes and the ability to hand out 4 power to a Plant creature of your choice is incredibly strong, and turns late game mana ramp into a lot of potential pain for your opponents
Whatever buffs you want for birds will buff your army of mechanical flying tokens
Olivia, Crimson Bride Olivia, Crimson Bride works perfectly fine without other legends, but it incentivizes you to play a few extras
While this feeling is true on its face we haven't seen $700 Standard decks in quite a while perhaps looking at the history of Standard deck prices can lend context to the current prices and why they feel so extreme