When I look at card draw, for instance, I often opt to include some lifegain if I can
Urzas Sylex Karn's Sylex appeared in the last set, and this time Urza's Sylex shows up (the original Sylex?) It comes in at three mana and has an activated ability that costs , tapping, and exiling it to destroy all other permanents except for six lands each player chooses to keep
'Mirabel Madrigal - Gift of the Family' may buff other Madrigals, but you're not going to pull this card consistently, as the starter deck only has one copy
At the beginning of each turn, a player draws one card and adds that card to their hand
Luxior is intended as a cool build-around so you can turn your planeswalkers into creatures and beat your opponent with them
Here's the recommended replacements for those underperforming cards