Note that the order of these effects is random, so it is possible that Renathal can buff your Health before getting eaten by the scythe. The only card that is exempt from this possibility is C'Thun, the Shattered, which always goes first.
Are you sure that the order is random? I have restarted multiple times with C'Thun, Renathal and Malchezaar and only C'Thun would take priority while the other two were always consumed.
Are you sure that the order is random? I have restarted multiple times with C'Thun, Renathal and Malchezaar and only C'Thun would take priority while the other two were always consumed.
So I think it is intended to be in this order.
Oh and Genn doesn't work either.