Battle of The Heroes

Choose 4 Target creatures and they become goaded for a number of turns equal to X.They each gain indestructible lifelink and hexproof and after a number of upkeeps equal to X flip a coin if it lands on heads each of the 4 creatures gain all combat abilites for the rest of the game and if it lands on tails sacrifice 2 of those creatures and they become 5/5 cyborg dark lord artifact creatures with afflict 10 fear Vigilance Trample and double Strike and deathtouch