Frogmite

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)

Thought Monitor

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Flying
When Thought Monitor enters, draw two cards.

Destroy target land you control and target land you don't control.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Draw two cards.

Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.
Draw a card.

Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.
Draw a card.

Lightning Bolt deals 3 damage to any target.

Silverbluff Bridge enters tapped.
Indestructible
{T}: Add {U} or {R}.

Indestructible
{T}: Add {C}.
{5}, {T}: Add five mana in any combination of colors.

Flying, haste
Shivan Devastator enters with X +1/+1 counters on it.