This is a scenario that has happened more than once and we were wondering if our friend was playing it right or cheating us:
He plays Saalanesh's Domination and takes from my hand: Hight Elf's Disdain, Greater Heal and Blessed Spawning
He plays all of them but doesn't search is deck (even if it was pointless), didn't have any damaged units to heal or any other tactic to cancel
He did the same thing in many other games opposing other players with many other decks