As a rotating constructed format, Standard players have access to roughly the past three years of cards released in expansion and core sets
The GY effect gives you recovery, making this yet another great option to send with Soul for a draw
It gets better every year, as I wrote recently(ish)
Therefore, it's a card you always want to have in your hand
It has a somewhat heavy restriction of using only face-up Beast-Type monsters on the field as material, but the Super War-Lion summoned with this card gains 2000 ATK for the turn, bringing its firepower up to 4300
UR Ultra Rare Forbidden Forbidden Mystic Mine X SPELL Field If your opponent controls more monsters than you do, your opponent cannot activate monster effects or declare an attack