No terfs on Gruul Turf! It also works as the RG hybrid slot, helping to cast the expensive beaters.

Counters, cantrips, card draw, bounce and flyers. Low board presence.

Aggro with burn, sacrifice, tokens and some spell matters creatures.

Grindy control deck with a lot of removal, creature recursion and sacrifice themes.

These give support for all the different archetypes.

Adding Pulse to enable looping in UG (and maybe RG with Ardent Elementalist).

White has mostly aggro creatures both with +1/+1 counters synergy and token creation, plus some light removal (e.g. tappers, Pacifism).

For control decks it provides a few high toughness defensive creatures and card advantage (e.g. aura tutoring, blinking, monarch).

Monogreen is a midrange deck with beefy, resilient creatures (e.g. hexproof, escape) growth in form of +1/+1 counters (with proliferate and lords), some ramp, top end and mana sinks.

For 180 a set of 10 duals plus some extra rainbow lands will do:

• Gainlands because it helps slow decks a little, in case they struggle a little.
• Crumbling Vestige and Ash Barrens should be less painful for aggro decks to run.

Rounded up to 20 with a utility land and the five Onslaught cycling lands, because every deck needs cantrips (?).