Thread:LegendAjax/@comment-30745936-20161213235119/@comment-24659969-20161214003832

By the game original, the EoC chapters does not need any gacha or special units except those given from stage drops or rewards. Just think about it; long ago, player of BCJP from version 1.0.x had to clear all those three chapters with normal units and base upgrades capped at level 10. No plus levels or adjusted difficulty or extra units such bean cats like today.

Rather than focusing on getting ultra rare for beginners like you, I would rather recommend you to check other stuffs which more vital:
 * Have you collected all treasures before to gold level? If not yet, repeat those stages again.
 * Have you levelled up your units to the cap? At your moment, I wouldn't bother about getting Uber since their XP upgrade cost is too damn high anyway. Rather, getting all my normal units, Moneko and bean cat to level cap first are mandatory.
 * Review your playing style: Meatshield spam timing, lane-push control and such.

It is much easier to gain catfood and rare tickets once you have access to SoL which you can bank up for use during guaranteed uber gacha or uberfest gacha event.