Hello!
For this you must consider monsters that break flowers and others non-pushable players to itens. The most commonly used are: Blood Crab and Demon Skeleton. You can search by their mana cost and immunity to most commonly damages in battle.
The common summons for battle are not used often anymore. Maybe on very early game Fire Elementals, for example, can be useful. Mid game and late game rarely use common summons for damage.