Thread:TheDigger1/@comment-31259708-20150319091134/@comment-2218433-20150330055951

Allow me to point out specfic types out outside help

Tigerzord vs. Epyon - Tommy was able to summon the other Zords because they're just machines and they aren't able to function unless:

1. Mega Tigerzord is formed

2. The other Rangers enter their own Zords

And since Mega Tigerzord does not need the other Rangers to be formed and Tommy can summon them, it's perfectly viable for a Death Battle.

Legend of Zelda Faries, Final Fantasy Summons, Bayonetta Summons etc. would not be permitted in a battle since they are separate beings from the combatant and they are able to help one person win, The only ones who can escape this rule are those who are Summmoners