Kletva kralja Zvonimira

Enchant target player.
At the beginning of enchanted player's upkeep,
that player reveals his or her hand, then target
opponent chooses a card. Target opponent may
play chosen card up until his next end step, and
may spend mana as though it were mana of any
color to cast that spell.
..da bi vece Hrvati nigdar imali gospodina od
svoga jazika, nego vazda tuju jaziku podlozni bili.
- Dmitar Zvonimir, kralj Hrvatski