Jujikki, Goblin High Shaman

Hexproof
At the beginning of your upkeep, put an age
counter on Jujikki, Goblin High Shaman.
Spells that target a creature you control cost X
more, where X is the number of age counters on Jujikki, Goblin High Shaman.
At the beginning of combat on your turn, you
may put X +1/+1 counters on target creature,
where X is the number of age counters on
Jujikki, Goblin High Shaman