Aronox the Emperor

Indestructible, Trample
This card gains +1/+1 for each knight you control.
Other knights you control gain Trample
As long as Rebeca the Empress is on the field this card gains
+2/+2 for each knight you control instead, and Hexproof
Sacrifice two creatures, this card gains Deathtouch untill end of turn
"He saved me from them, so I will forever protect him." as decreed by the Empress