One will allow you to deal a powerful alpha strike with your vigilant creatures with flying and double strike, while the other mode will grant your creatures lifelink and protection
The exiling cards from your graveyard ability now gives this fella flying for the turn (side note, I do love the flavor of a lot of recent Frog cards in Magic being able to Leap for a turn of evasion)
Sunspine Lynx only stops damage from being prevented by effects that specifically use the word "prevent." Protection prevents damage, so protection will be unable to prevent damage while Sunspine Lynx is on the battlefield
Nothing can happen between the two, and no player may choose to take actions.
Normally this is where I stop, but this is a deep set, especially in Black and Green
More than just because Seven is thematic, its also because the deck out of the box performs quite well already