Maskwood Nexus is a Rare, Artifact card from the Magic The Gathering set Modern Horizons 3 Commander (MTGSC-M3C-0299)
You can't make choices or decisions for that player that aren't called for by the game rules or by any cards, permanents, spells, abilities, and so on
Some decks focus on: Swarming the battlefield with green creatures Casting multiple spells in a single turn Generating value through drawing and recursion Building around thematic elements like dragons or spirits For example, Temur Roar is a deck archetype that focuses on ramping into powerful dragons, showcasing the synergy between ramp and big creature strategies
This can be super-powerful in controlling the board if you retrigger it in combination with the sacrifice and death triggers that this deck is filled with
You could forego playing other dragons altogether and focus on making Thrakkus a one-hit kill commander, but youre going to want haste enablers either way