Ichorid + Cephalid Coliseum

[HokusSchmokus]

Hello there!
An interesting question came up during my last game of Legacy:
I am playing Dredge. It's the upkeep of my turn, I have 1 Ichorid + black card and 10 other cards in my graveyard. I have an untapped Cephalid Coliseum and enough mana to activate it.
Can I activate Cephalid Coliseum in response to the Ichorid's trigger in order to hit more Ichorids, and still bring them into play after I resolve the first one's trigger?

My guess is no, because all of the Ichorid triggershave to go on to the stack at the same time.

[jjjoness']

Ichorid triggers at the beginning of your upkeep. Since it's not the beginning of your upkeep anymore, once you receive priority, enabling you to activate colliseum, Ichorids that haven't triggered already won't trigger.

[cdr]

To say what jjjoness said a little differently, a card that triggers if it's in the graveyard at beginning of upkeep must be in the graveyard as the upkeep begins in order to trigger. The last opportunity to get a card in your graveyard before your upkeep is generally the end of your opponent's turn.

[HokusSchmokus]

Okay, thanks for making it clear.