Raging River [Limited Edition Beta] Elder Dragon Set: Unlimited Edition Type: Instant

Set: Unlimited Edition Type: Instant Rare Cost: {R}{R} Copy target instant or sorcery spell

if Genesis is in your graveyard

Set: Commander 2011 Type: Enchantment Uncommon Cost: {2}{R}{R} At the beginning of the end step

sacrifice a green creature

" —*The Book of Kith and Kin*

Raging River [Limited Edition Beta] Elder Dragon Set: Unlimited Edition Type: InstantSet: Limited Edition Beta Type: Enchantment Rare Cost: {R}{R} Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a "right" pile. Then, for each attacking creature you control, choose "left" or "right." That creature can't be blocked this combat except by creatures with flying and creatures in a pile with the chosen label.