But what if you don't have enough essences for even a +2/+2 spell?
((Well then, you should probably try breaking your opponent's nose and stuffing a gag into their mouth. The existence of spells doesn't prevent your from making full use of your fists.
In any case, a temporary lack of magical power is a perfectly reasonable trade-off for fighting or casting a large spell. It's basically what happens in real life, albeit with exhaustion of a more physical kind.))
((As for new players...
I know the first incarnation of gloomy had a pretty bad experience, but in all honesty, he had some terrible luck to match. Literally every moderately-established player in the game has gotten past that initial stage of weakness. That's ~18 now, plus many others who have died over the course of 134 turns.))