Planes usually have two important parts: A main ability which can be a continuous effect, such as Tazeem in Zendikar (whose ability is that creatures can't block while this plane is active), or a triggered ability, such as Undercity Reaches from Ravnica (which allows the controller to draw a card each time one of their creatures deals combat damage to a player)
In non-Commander formats where Lutri, the Spellchaser is legal, it's simply not anywhere near strong enough to make it worth greatly reducing the consistency of your deck
Artifact Color tag templates(None) Jhoira's Familiar Flying Historic spells you cast cost less to cast
Valentine's Day for Him or Her
Higher attack power reduces Ghalta's casting cost, so unleash her as soon as possible and trample the competition
What the Product Page Should Help You Decide A strong set guide should reduce hesitation before the product page click