Sierra, the Juanilator

At the beginning of your upkeep all players
named Juan are target players. Choose one more
target player to be named Juan. Choose one:
•Target players keep there heads on the table
untill their turn
•Target players and you bring creature from graveyard to battlefield
{6}{t} you gain {x} of life where {x} is the amount of creatures of the same subtype
of your choice.