Sacrifice series
The Sacrifice series are a triad of unique caster armored Popups, built by Clickbeetle.
Unlike normal caster armored popups, these bots are built to run inverted and only inverted. They do invert with some kind of reverse srimech (used also as wedges), then fight inverted for all the match.
The Caster armor is actually on the bottom of the bot, so when inverted it becomes nearly invulnerable front armor.
Noble Sacrifice
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The series's LW. Unlike the two others, it has no wedge in it's actual version, making it not as good as the two others.
Ultimate Sacrifice
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The series's MW and the first of all the series, built long before the two others.
Heroic Sacrifice
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The series's HW and most probably one of the best heavyweights ever built.