To qualify, your main attacker absolutely needs to have these two traits: Firstly, it must be able to set up quickly, and secondly, it needs to do a lot of damage
And then when you layer it into tokens, creatures that sacrifice, creatures that have death triggers, and more, you get one of the single most powerfully broken cards ever printed
Ward 4 is an absurd level of protection - players wishing to target Kappa Cannoneer with removal spells will need to pay five mana at a minimum to do so without it being countered, and that's assuming the removal spell only costs one mana
Chaotic Strike Chaotic Strike might work a lot better in a Limited environment
Im actually trying to survey for a better japanese source for TCG Collector