ultra rare mew card V - 69/189 If you have less cards in your hand then your opponent Pokemon Lost Origin Ultra Rare

In theory, it is possible to cast Cruel Ultimatum and lose the game, but I have not seen this happen

A good practice is to always evaluate your hand for the best Trainer card to play at the start of your Action Phase, maximizing its impact

This creates a spear with built-in attack power of 5000 + target designation resistance + reduction of attack power of opposing monsters by 500 + nullification of all opposing attack position monsters at the start of the Battle Phase + suppression of effect activation until the end of the Damage Step during battle and nullification of the effects of all opposing face-up monsters

Pendulum Monsters you control are unaffected by that effect

That's when booster packs come into play (a Lorcana booster has 12 cards), which help you get new cards