The four-drop legendary Sheoldred, the Apocalypse with deathtouch and an okay 4/5 size will turn card draw by your foes into losing 2 life each - two cards drawn with your leader and then you'll gain two life too per draw
With a 7/7 body and Trample and Reach, it poses a serious threat, while it can act as ramp by milling five cards at I and returning all land cards from our graveyard to the battlefield tapped at II
What makes this card special, however, is that this card can return to your hand instead of being discarded if its holder uses an attack that might otherwise get rid of it
But I do think graders see a first ed charizard and go hm ill take an extra look at it rather then a glance with a common card from Sword and shield
Make sure you have at least fifteen
Since Vial Smasher the Fierce triggers when you cast the spell, if you have a very expensive spell that you know you can safely cast again, you may rather cast it, lose the flip to return it to your hand, then cast it again on your next turn