At the beginning of combat on your turn, you may have Johan gain "Johan can't attack" until end of combat. If you do, attacking doesn't cause creatures you control to tap this combat if Johan is untapped.

Jovial Evil deals X damage to target opponent, where X is twice the number of white creatures that player controls.

You and target player exchange control of the creature you each control with the highest converted mana cost. Then exchange control of artifacts the same way. If two or more permanents a player controls are tied for highest cost, their controller chooses one of them.

: Add .
: Return target legendary creature to its owner's hand.

: Prevent the next 2 damage that would be dealt to target creature this turn.

Flying
: Killer Bees gets +1/+1 until end of turn.

Artifacts, creatures, and lands your opponents control enter the battlefield tapped.

, : Exile the top card of your library face down.
: Sacrifice Knowledge Vault. If you do, discard your hand, then put all cards exiled with Knowledge Vault into their owner's hand.
When Knowledge Vault leaves the battlefield, put all cards exiled with Knowledge Vault into their owner's graveyard.

Other Kobold creatures you control get +0/+1 and have trample.

First strike
Other Kobold creatures you control have first strike.

Other Kobold creatures you control get +1/+0.

, : Prevent all damage that would be dealt this turn by target creature you control. That creature gets +0/+X until end of turn, where X is its converted mana cost.

: Lady Caleria deals 3 damage to target attacking or blocking creature.

, : Prevent all combat damage that would be dealt by target creature this turn.

If an opponent who controls at least as many lands as you do would put a land onto the battlefield, that player instead puts that land onto the battlefield then sacrifices a land.

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle your library.