Official Rulings
How does Replicator’s (COTA 150) “After Reap:” effect interact with a creature that has multiple “After Reap:” effects?
Replicator’s ability refers to a singular “After Reap:” effect. If a creature has multiple “After Reap:” effects, the active player can choose which of the “After Reap:” effects they wish to resolve.
Source: Rulebook
How does Replicator’s (COTA 150) “After Reap:” effect interact with a creature that has multiple “After Reap:” effects?
Replicator’s ability refers to a singular “After Reap:” effect. If a creature has multiple “After Reap:” effects, the active player can choose which of the “After Reap:” effects they wish to resolve.
Source: Rulebook
What happens if I use Replicator (COTA 150) to trigger the reap effect of an opponent’s Sanctum Guardian(COTA 256)?
Sanctum Guardian’s reap effect will do nothing. A creature cannot be moved from one player’s battleline to the other player’s battleline except by effects that explicitly change control of that creature.
Source: Rulebook
What happens if I use Replicator (COTA 150) to trigger the reap effect of an opponent’s Sanctum Guardian(COTA 256)?
Sanctum Guardian’s reap effect will do nothing. A creature cannot be moved from one player’s battleline to the other player’s battleline except by effects that explicitly change control of that creature.
Source: Rulebook
I reap with Replicator (CoTA 150), and use its ability to trigger the reap effect of my opponent’s Sequis (CoTA 257) as if I controlled it. Which player’s pool does Sequis capture Æmber from?
Sequis captures 1 
from your opponent’s pool. You are using Sequis as if you controlled it, so the default capture rules cause the Æmber to be captured from your opponent’s pool.
from your opponent’s pool. You are using Sequis as if you controlled it, so the default capture rules cause the Æmber to be captured from your opponent’s pool.Source: Rulebook
I reap with Replicator (CoTA 150), and use its ability to trigger the reap effect of my opponent’s Sequis (CoTA 257) as if I controlled it. Which player’s pool does Sequis capture Æmber from?
Sequis captures 1 from your opponent’s pool. You are using Sequis as if you controlled it, so the default capture rules cause the Æmber to be captured from your opponent’s pool.
from your opponent’s pool. You are using Sequis as if you controlled it, so the default capture rules cause the Æmber to be captured from your opponent’s pool.Source: Rulebook
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