Mew

Mew is one of the first in-game Mythical Cards. Mew is very infamous for being reworked multiple times in it's lifetime (Such as Invoke : Give +8/+8 to adjacent allied Pokémon).

Overview
Mew currently is a great card to buff pre exisiting cards on the board with a big boost of +7 ATK and +7 HP. Using Mew and using the effect on a taunt Pokémon would make this card great for stalling or even clearing the opponent‘s board. However it’s base stats are comparably expensive compared to similar Pokemon with similar stats.

Previous Versions
Before June 19th Version - Mew had a power which reactivated it's Invoke, letting cards in hand gain +4/+4 in one turn if possible, so it was reworked to reflect those changes.

Current Old Pokécards Version - Invoke : Give +2/+2 to all Pokémon in your hand.

Power (4) Splice: Add a Mewtwo to your hand.

Revamed PKC (Unknown):

(Combatant) Invoke: Give target friendly Pokemon +7/+7 and Combatant.

Evantually, combatant was removed from Mew and the effect.