While this can be a threat, and you should watch out for growing Ornithopters, most of the time that means that you will take no combat damage and more than half of all decks rely on combat damage to win the game
Mana production and card advantage on one card is generally quite strong, and the Brushrazer is no exception
The Regent, on the other hand, offers for a relatively low mana cost (2RR) the ability to inflict three points of damage to a player as soon as a dragon becomes the target of an opponents spell or ability
Costing four to cast and five to equip, at the beginning of combat on your turn you make a non-legendary copy of the equipped creature and gives it haste
Pacifism itself is bad because it is fairly easy to remove and does nothing to stop abilities and static effects
Note it's legendary so you can only make one Octopus, attack and then make one untapped to replace it