how many cards are legal in standard mtg card database OC] [Infographic] Venn diagram of every card banned or restricted a major format : r/magicTCG Rule of Law - Core

In the same way that you can't cast a spell if you can't get the proper mana, mana is also a limiting factor when it comes to deck building

It's not just pure life gain

Attacking Lastly, since we know were going to be attacking with Marton, lets include other cards that benefit from an aggressive stance

In Commander, the must-haves for Mana rocks are Sol Ring (instant reward of an additional colourless Mana), Arcane Signet (that can quickly tap for any colour with no drawback, Fellwar Stone and the various Talismans and Signets (allow you to filter between two colours)

It's a solid card that always has a good mode to choose from

Id also like to point out the kinds of situations in which the card can be better