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Extruder

Card Name

Extruder

Mana Cost

4

Type

Artifact Creature – Juggernaut

Rarity

Uncommon

rules Text

Echo
4
 (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)Sacrifice an artifact: Put a +1/+1 counter on target creature.

Flavor Text

As the invasion drew closer, Urza's means began to resemble Phyrexia's end.

Legal Formats

Commander, Legacy, Modern, Vintage

Not Legal Formats

Alchemy, Brawl, Explorer, Historic, Pauper, Pioneer, Standard

Rulings

(6/18/2021)
Extruder can be the target of its own activated ability, and you can sacrifice Extruder to pay for that activation. This won't accomplish much, but it does allow you to sacrifice Extruder if you want to.
(6/18/2021)
Paying for echo is always optional. When the echo triggered ability resolves, if you can't pay the echo cost or choose not to, you sacrifice that permanent.
(6/18/2021)
Your permanent's echo ability will trigger at the beginning of your upkeep if it entered the battlefield since the beginning of your last upkeep, or if you gained control of it since the beginning of your last upkeep.