IF YOU WANT TO USE v1.0, YOU NEED TO READ THE INSTRUCTIONS (https://civitai.com/articles/671)
This model makes card templates for board games / trading card games.
bct2_basic: makes cards, slightly overcooked (too detailed, lots of 3d, slightly washed off colours, not bad looking)
bct2_2080_basic: makes cards, removed the overcooked checkpoints
the activation word 'bct2'
a color: 'green color', 'lava red colour', 'black and gold color'
a style, artistic or universe: 'watercolor style', 'steampunk oil painting style','digital art style'
a description of the background: 'black background','forest in the background','background with scribbles'
a description of the card: 'card with gold ornaments','card that looks like a jewel'
a description of the title banners: 'blue title banner', 'hammered gold text banner'
a description of the illustration: 'oval illustration space with thunder','black picture frame'
a description of the text box: 'text box with cloud texture'
a description of the spaces to put stats: 'heart symbol at the top left', 'shield symbol at the bottom right'
quality: 'masterpiece, best quality'
negatives: blurry, badly drawn, ugly, low quality (from the training set)
obviously this is not all necessary or taken into account in the image generation, but it's what it was trained with ...
This is a difficult one, because most models really want to draw a human being or waifu.
1.5~3.0 for models that can do landscapes or objects
2.5~4.5 for Lyriel and some anime models (to override their tendency to draw an anime girl)
0.7~1.3 for waifu basic
if you get a drawing and not a card then weight is too low, if card with details weight is ok, card with no details weight is too high, card with black hole in the middle weight is far too high
you can add 'plain card style' in the prompt to help get a standard card (rectangle card, title, illustration, title, text)
in all cases, if you use a new checkpoint, it is highly recommended to do a Prompt X/Y/Z with the Lora weight
This model was trained on OpenJourneyV4, a realistic model.
it is more difficult to make cards with anime models, because it is hard to create the shape of a card (would require lora weight > 4.5, but the Lora breaks before that)
the main factor that determines having a decent card seems to be the random seed not the weight of the Lora (need a seed that has high contrast in it)
things to try:
try many seeds and reuse the good ones
tweak the Lora weight after having a good seed number
try adding 'plain card style' as mentioned above
try reducing the weight of the activation word 'bct2', since these models use Booru prompts and not plain language prompts, the lora on the text layer is maybe useless
another possibility is to make a card with Lyriel or XenoEngine, and run it through img2img with loopback on the anime checkpoint (example parameters: 0.6 denoising, 50 steps, 6 loopback iterations, 0.2 loopback final denoising)
it is highly recommended to have the add_details lora (to make a card more cartoonish or more realistic) https://civitai.com/models/82098/add-more-details-detail-enhancer-tweaker-lora
you can use http://cleanup.pictures to cleanup unnecessary details
you can use extensions based on segment-anything to select relevant parts of the card for post processing
the models generate dark images sometimes (because it was trained on pictures with black background and black illustration box, this can be removed with the prompt)
the trick of using a controlnet to get a specific card shape still works (see the instructions for v1.0)
the dataset used for training is available. If I had to re-train from scratch I would use a helper word as well (maybe 'tablet' or 'smartphone' or 'trading card')
I tried fitting a textual inversion, it was a failure (it didn't interact well with the Lora), but it gave a clue: a useful helper prompt is '📅', the calendar emoji. I tried adding several 📅 to the prompt, it makes the generation follow the prompt more, forces more icons (good for showing stats) and makes more subdivisions on the card
see https://civitai.com/models/95424/pokeffects for even more Loras
a word on aesthetic score
from what I've seen, 4.5 is a normal card, 5.5~6.0 is a very good looking card, 6.2+ cannot be a card and will be a drawing instead
therefore, not having 'masterpiece, best quality' in the prompt can help with card shape
the model was trained on realistic checkpoints, it can get 5.5~6.0+ score on realistic checkpoints, but only around 5.0~5.5 on anime models (would need to build a dataset and train a specific lora)