You can't use this effect to assign some of the creature's damage to a blocking creature and the rest to the player, planeswalker, or battle it's attacking
Lantern was reprinted and saw a quick drop and then immediately rebounded as it was only included in 1 of the 5 decks and players needed far more than got printed
The deck starts by casting efficiently costed creatures with strong secondary abilities including Claim Jumper (land fetch), Finneas (+1/+1 counters, draw), Ghired (creates tokens), Jacked Rabbit (rabbit creature tokens), Mirror Entity (increases base power/toughness), Warren Warleader (rabbit tokens, anthem effect), etc
This guy has proven highly potent in cube
Many MtG mutate cards have abilities that trigger when they (or another card) mutates
In a Two-Headed Giant game, life gained by your teammate won't cause South Wind Avatar's last ability to trigger, even though it caused your team's life total to increase