Shockwave, Logical Firepower

Equipped creature has vigilance and gets +1/+1
for each +1/+1 counter on artifacts you control.
Whenever Shockwave or equipped creature attacks,
two target players may discard a card. For each card discarded this way draw a card. For each player
who didn't discard this way put a +1/+1 counter on
each legendary artifact you control. If both players discard a card or didn't discard, convert Shockwave.
Reconfigure {w}{u}{b}{r}