Jens Bergensten has announced that Minecraft’s Ghast tears will allow players to regenerate upon death.
While Jens didn’t mention if it would work on Hardcore mode which only allows for one death, he commented, “since Ghast Tears are so hard to get, I’ve decided to replace the “Instant Health” with “Regeneration” for them”. Jens later added that while instant health was helpful “Regeneration is a lot more useful”.