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'{R}, {T}: This creature deals 2 damage to target blue creature.
'At the beginning of your upkeep, create a colorless artifact token named Land Mine with "{R}, Sacrifice this token: This token deals 2 damage to target attacking creature without flying."...
'{T}: Target creature gains haste until end of turn. (It can attack and {T} this turn.)
'{T}: Add {C}.
'Haste
Echo {1}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
'Whenever this creature attacks, target creature can't block this turn. Dash {2}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned...
Haste
Mayhem {2}{R} (You may cast this card from your graveyard for {2}{R} if you discarded it this turn. Timing rules still apply.)
'Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)
{1}{R}: This creature gets +2/+0 until end of turn.
'{T}, Sacrifice a Goblin: Goblin creatures get +2/+0 until end of turn.
'Sacrifice this creature: It deals 2 damage to target creature with flying. That creature loses flying until end of turn.
'Other Riggers you control get +1/+0 and have haste.
If a Rigger you control would assemble a Contraption, it assembles two Contraptions instead.