Genex Ally Bellflame Rare

Each time a monster(s) you control is sent to the Graveyard, place 1 Genex Counter on this card. Each time a card(s) in your opponent's Graveyard is banished, place 2 Genex Counters on this card. This card gains 100 ATK for each Genex Counter on the field. If this card is destroyed by battle and sent to the Graveyard, inflict 300 damage to your opponent for each Genex Counter that was on this card.