Reach, hexproof from blue
Whenever this creature is dealt damage, you gain 1 life and create a 1/1 green Saproling creature token.
It spins its web throughout the undercity, strange growths sprouting in its wake.
(23/06/2020)
Hexproof from blue means that Sporeweb Weaver can't be the target of blue spells your opponents control or abilities your opponents control of blue sources.
(23/06/2020)
Sporeweb Weaver's last ability triggers just once, no matter how many things deal how much damage to it at once (most likely because two or more creatures blocked it).
(23/06/2020)
Sporeweb Weaver's last ability triggers even if the damage causes it to die.
(23/06/2020)
If your life total is brought to 0 or less at the same time that Sporeweb Weaver is dealt damage, you lose the game before the ability goes on the stack.