This can have great offensive and defensive use, though players must be aware that the effect only kicks in after damage is calculated
Half the argument: everything except the SIR is cheap, which is great for accessibility
Destroy all face-up Spell/Trap Cards your opponent controls
For example, if Ephara is dealt what would be lethal damage and later loses indestructible (perhaps because you lose control of some enchantments), it will be destroyed the next time state-based actions are performed
It is worth noting that Cyrus is not actually associated with a Charizard elsewhere as this card implies, although the sight of Charizard breathing fire with its features half in shadow is an impressive sight nonetheless
This can quickly grow out of control if your opponent doesn't have any hand disruption and, with a beefy 300HP, you can keep bonking Pokemon away without much issue