Yaekiri, Greatbow/Rulings

Note: Will format later, please revise.
 * This SIGNI's [Constant] effect checks the state of the field immediately previous to its removal in order to trigger.
 * If Yaekiri, Large Bow and 2 other  or  SIGNIs are removed from the field at the same time (e.g. Big Bang, Back Against The Flame), then Yaekiri, Large Bow's [Constant] effect will trigger.
 * If there are 2 or more Yaekiri, Large Bow SIGNIs on the field (along with  and  SIGNIs to satisfy the condition) and are removed from the field at the same time, all their [Constant] effects will trigger, since the state of the board immediately previous satisfies the condition.
 * Source: https://twitter.com/wx_tcg/status/514983778632998912
 * When this SIGNI attacks and is banished by Code Anti Vimana's [Constant] effect, if the conditions for Yaekiri, Large Bow's effect was satisfied prior to the attack, its [Constant] effect will trigger.
 * Source: https://twitter.com/wx_tcg/status/519679418667503618
 * If this SIGNI is banished from the field as a result of reaching 0 or less Power by an opponent's card effect and meets its condition, the [Constant] effect will not trigger, as it is being removed from the field by a game rule, not by the opponent's card effect.
 * Source: https://twitter.com/wx_tcg/status/519677596494098432