WAR UNENDING

Indestructible, Hexproof This spell cannot be countered All creatures must attack every turn All creatures have vigilance At the beginning of your upkeep every player creates either a 6/5 Killaboss on GreatnashTooth with reach and infect or a 10/4 storm cast enteral with Reforged (whenever this creature dies or is exiled, exile it, put a time counter on it and when all time counters are removed return it to the battlefield with battle hardened
and a +1+1 counter on it)