Tideforged Anchor

If a nonland permanent entering the graveyard
or battlefield causes a triggered ability of that permanent or a permanent you control, that ability triggers an additional time. You can
only use this ability is Tideforged Anchor was summoned using Tideforged Leviathan.

Whenever a nonland permanent enters your graveyard from anywhere, you may pay {u}{b}. If you do, draw a card and target player
must sacrifice one creature.