Niv-Mizzet, Guildpact

Creatures you control get +2/+1 until end of turn. Investigate. (Create a Clue token. It's an artifact with "2, Sacrifice this token: Draw a card.")

Creatures you control get +2/+1 until end of turn. Investigate. (Create a Clue token. It's an artifact with "2, Sacrifice this token: Draw a card.")

Lightning Helix deals 3 damage to any target and you gain 3 life.

Other Detectives you control get +1/+1. Whenever you draw your second card each turn, target Detective can't be blocked this turn.

Whenever another creature you control with power 2 or less enters, target creature you control gets +1/+1 until end of turn.

When this creature enters, return up to one other target creature to its owner's hand. If you controlled it, investigate. (Create a Clue token. It's an artifact with "2, Sacrifice this token: Draw a card.")

This spell costs WU more to cast for each target beyond the first. Choose any number of target players. Investigate X times, where X is the total number of creatures those players control.

This creature gets +1/+1 for each Forest you control. Disguise 4G When this creature is turned face up, search your library for up to two Forest cards and reveal them. Put one of them onto the battlefield tapped and the other into your hand, then shuffle.