You can swap them out for whatever you have on hand
His methods were both subtle, whispering words intended to stoke the paranoia of Dominaria's leaders and impel them to unwise actions, and direct, using magic to murder those he could not manipulate
In the meantime, most opponents wouldn't understand the source of their misery and wouldn't kill the Howling Mine even if they could
Being black, red, and green, this deck is all based on sending your own cards to the graveyard, and then pulling them back out to swarm your enemies
In the early part of games, these can be lands
The Insects can even spawn more of themselves with the help of effects like Reconnaissance Mission and Unctus, Grand Metatect