Forum:Royal Opression

So i have a question about an arguement i recently had at my local shop. I synchro out fro Shi En, and then flip royal opression next turn to negate his summoning of a card. So heres were it got tense i guess, i summoned Kageki and used his effect to summon Kegemusha from my hand, and my oppentent paid to negate it, when i said i used Shi Ens effect to negate it, he said i couldnt. Could i have used shi ens to negate RO effect when my opponent used RO to negate a summoning or no?

66.41.131.114 (talk) 21:26, May 27, 2011 (UTC) Shadowman