User blog comment:Mr. Boss-inator/PvZH Illegal Combos/@comment-25612966-20170620034403

Infinite Attack Cycle 2:

Requirements: Heartichoke, Venus Flytraplanet, any Solar hero.

What you need to do: Just place the Heartichoke on the Venus Flytraplanet.

Result: The Heartichoke will do damage, then Venus Flytraplanet will heal the Plant hero, then Heartichoke does damage to the Zombie hero, Venus Flytraplanet heal the hero and it goes on and on...

Cons: Opponent may block.