The game will prompt you as though you were able to cast a spell or activate an ability, even if you are not, concealing your situation from your opponent
That's because he comes with a vastly more flexible effect, letting you draw when you make tokens, and even creating his own token creatures to power that card draw effect
Calamity Bearer Calamity Bearer is a damage doubler for giants, plain and simple
Although Graha Tia, Scion Reborn is its other possible commander card, its best to use Yshtola, Nights Blessed
Most spellslinger decks feature a suite of mostly blue creatures that generate tokens when you cast spells, and this would be no different
With the right hand, you'll absolutely dominate against other starters - without it, you're pretty much toast