Simic

Landfall decks are causing landfall triggers with multiple lamp ramp spells. Often the triggers provide extra resources, +1/+1 counters or lifegain. Main wincons with landfall decks include: land creatures, +1/+1 creatures and massive value engines.

Spell slinging is an archetype for decks, focusing heavily on instants and sorceries. Wincons can be anything from tokens, to removals and counter spells to storm and burn effects.

Cantrips are spells with a draw effect on them. Cantrip decks are often instant and sorcery spell slinger decks and aim to cast as many cantrips as possible and creating value from the cast triggers.

Draw matters decks gets value out of card draw triggers. Value can be anthem effects, tapping creatures or straight up life loss for the opponents. Draw matter decks run a high amount of interactions and tend to draw during opponents end steps.

Combo decks are control heavy decks, running a heavy amount of card draw or tutors. If the decks get to assemble the combo pieces the game often ends in an infinite combo.

As green has the best mana ramp options in the format, and the biggest creatures, too, it is only natural that big creatures / stompers decks are popular in mono green. Stomper decks have lots of ramp in them, and aim to cast big creatures to wreak havoc to the opponents.