Kelbor-Hal, Traitor of Mars

Canticle (You may tap this creature. If you do, you
gain 1 counter of Maintenance, then trigger any
relevant Canticle effects. All counters of Maintenance
are sacrificed during the end step.) Once you have 4
or more Maintenance counters, all artifacts you control are daemons artifact creatures with base
power and toughness of 4/4 until end turn.
{c}{u}: Daemons you control lose defender and get
+1/+1 until end turn.