Juvia Lockster

Partner with Grey Fullbuster. Unblockable
Juvia has vigilance as long as you control a card
with Gray in its name. Cards with Gray in their
names have ward {1}{p/u}
Water Lock—{1}{b}{t}: Put a flood counter on
Juvia. Tap each of up to X target creatures where
X is the number of flood counters on Juvia.