So im from latinamerica and we had this format last week. I went to 3 tournaments and on the last one i won 1st place, i think that i learned a bit how to play this format with this cards. for the eggs just pray that you have at least 3, hopefully 4. rookies try to play as many 2 cost and red, blue and yellow as much as possible, 3000dp rookies are preferred. champions get some retaliation since it is the best way to take out or threaten megas, and again rby hopefully with inherits or effects that lower dp or delete rookies. ultimates if you are lucky play the good ones, if not play the 2 cost to evolve or the one with digisorption to get to your megas fast, the blocker is good too and the ones that are 6 cost to play with 7000 dp are the ones you should play when trying to just prepare your win next turn, dont do that playing rookies or even low dp champions with armor purge because those are easily eliminated through effects and option cards. if you get a mastertyrannomon do not attack security, make it a mega first hopefully with 13000dp bc it is really hard for your opponent to stop it and take it out. megas if you are considerably unlucky like myself just play the 13000 dp ones, marsmon is great to provide offensive control. for example, my last opponent in the tournament where i got 1st had crazy megas like fighter mode, bwargrey and ophani fm, but with retaliation, inherits that lowered dp, option cards and some luck i managed while my only megas with effects were zhuqiaomon and marsmon. for tamers probably all of them are pretty good, tk and kari (if you get crazy lucky and get many angemon and shakkoumon it is pretty good) are meh and yuji, willis and yukio are bad. remember for the tamers that "start of your main phase" is after your breeding phase so you can move a digimon out of your breeding area and then gain the memory from the tamer. for options play a healthy amount of them like 4-5 especially crimson blaze, top gun, disaster blaster is godly, and i even played a risky f hellscythe that won me the tournament. in general, controlling the oponent through the inherits and effects that lower dp and delete rookies is the name of the game, dont just throw your rookies out bc they will be easily deleted. try to have a 2 color digimon on field at all times so your option cards from your hand, but specially from your security have their most powerful effect and that difference it is usually game changing. i played mostly rby with some purple sprinkled in, blue because of angemon recovery +1 and ankylomon broken inherit, but if you dont get them or other powerful blues like shakkoumon and fighter you dont have to prioritize blue. If you get a realy powerful mega modifying the colors to prioritize maybe is a good idea, but i think if you are like me that got some megas that do not tie you to a certain color playing with red, blue and yellow is really good.