Johan

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.

Nafs Asp

Whenever Nafs Asp deals damage to a player, that player loses 1 life at the beginning of their next draw step unless they pay {1} before that draw step.

Sol Ring

Mountain

Forest

Brainwash

Enchant creature
Enchanted creature can't attack unless its controller pays {3}.

Rainbow Vale

{T}: Add one mana of any color. An opponent gains control of Rainbow Vale at the beginning of the next end step.

Abu Ja'far

When Abu Ja'far dies, destroy all creatures blocking or blocked by it. They can't be regenerated.

Kird Ape

Kird Ape gets +1/+2 as long as you control a Forest.

Plains

Kismet

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