Geist Shield Aura

Geist Shield Aura comes into play with 4 Charge
counters on it. Sacrifice it when it has 0 counters.
{2}{u}: Add a charge counter to Geist Shield Aura.
{2}{w}, Remove 1 Charge counter: Create a 1/1
white Spirit creature tokens with Flying.
You and Planeswalkers you control have
Hexproof. An opponent can remove a Charge
counter by casting a spell that could target you
and targeting Geist Shield Aura instead.
"When I was young I bound geists to ward me."- Lord
Davriel Greystone.