For a balanced start, compare platforms, test free demos when available, and learn the lobby layout so navigation feels intuitive from the first session
If at least one target is still legal, the spell or ability does as much as it can to the remaining legal targets, and its other effects still happen
But using a different card to venture onto those floors means we can double-up almost 100% of the time, letting us clear the Tomb and Create Undead in just two turns
A creatures converted mana cost is determined solely by the mana symbols printed in its upper right corner (unless that creature is the back face of a double-faced card, a melded card, or is copying something else
And, as far as the rules go, there's a difference between cards that literally say draw in their text, and cards that say put a card into your hand or some similar wording