grace au fait que tombe aquatique soit ile et marais,les terrains qui deviennent ile le reste, car il y aura tjrs 1 marais en jeu, il ne deviendra pas ile car s'en déja une .

NdBiglucibe : non. At the beginning of each player's upkeep, that player puts a flood counter on target non-Island land he or she controls of his or her choice. That land is an Island for as long as it has a flood counter on it.
At the beginning of each end step, if all lands on the battlefield are Islands [Watery Grave est une île], remove all flood counters from them.