You cannot discard Windswept Heath to Abolish
If your goal is to play creatures and unload a lot of damage very quickly, you really want to come out of the gates starting on turn one or two
With five to six printings, these cards are by far the most common Base Set cards in existence, and their prices reflect that
The "light test" (shining light through the card), "bend test", and examining the rosette print pattern help verify authenticity
Flamewake Phoenix Flamewake Phoenix is even easier to bring back than Lightning Phoenix, and it flies into battle immediately
For example, if you control a creature with a tap ability, you could activate that ability in response to an opponents spell or during combat, even on their turn